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13EE5

Cannon Fire Direction Specialist

E-5 (Sergeant) · Army

E1–E3E-4E-5E-6E-7E8–E9
HEADS UP

You are an NCO now, and you own the safety check. As chief computer you are the gate every fire mission passes through before the guns hear it — the last check before rounds. Reconcile AFATDS against the manual backup on every mission, not because the regulation says so but because the day they disagree is the day someone forgot a charge or a met update. Counsel in writing (DA 4856) or you cannot defend a soldier when the Article 15 hits, and never authorize a solution you did not check because you trusted the computer.

The Honest MOS Read
You pinned SGT. You are an NCO now, and in the FDC that means something specific and heavy: you own the safety check. You run the technical fire direction for a cannon battery as the chief computer or an FDC section NCO, and you are the gate every fire mission passes through before the guns hear it. You receive the FO's call for fire, you check the computer's solution against your own — digital and manual — you validate the safety-T card and the surface danger zone, and you authorize the data that goes to the guns. You are the last check before rounds. The technical accuracy of the battery is your name on the data, and there is no recall on a round in flight. Treat that as the whole job, because it is. The transition that catches new sergeants is going from being the computer who runs the mission to being the NCO who checks it. As an SPC your job was to produce a correct solution; as a SGT your job is to catch the error in someone else's solution before it leaves the FDC. You reconcile AFATDS against the manual backup on every mission — not because a regulation requires it, but because the day they disagree is the day someone forgot a charge, fat-fingered a grid, or skipped a met update, and your reconciliation is what catches it before the round flies. The chief computer who rubber-stamps a solution because he trusted the computer, and the round lands on friendlies, has no defense — none. The safety check is not a step in the job; it is the job. The leadership load arrives in the same window. You run the section through the gunnery and the drills. You write monthly DA 4856 counselings on the soldiers under you — and you write them, because the NCO who counsels verbally cannot show a 4856 chain when the Article 15 hits and the first sergeant cannot defend him. You write the first NCOER inputs on your soldiers. You brief the FDC chief and the BC on FDC readiness — equipment, comms, training, and honestly which soldiers can and cannot run a mission cold, because that last assessment is the one the BC actually plans around. You counsel a cherry computer on AFATDS, manual gunnery, database hygiene, and the safety check in language the soldier repeats to the next cherry behind him, because building the next computer is now your output, not just running your own missions. You also own accountability that did not used to be yours. The FDC's sensitive items, the computers, the crypto-fill devices, the comm gear — property loss at NCO level eats the battery schedule and your NCOER. You let the manual backup atrophy across the section at your peril; the day AFATDS drops on a live mission and the FDC cannot plot, the guns sit silent and the BC is in your AAR, and 'the system was down' is not a defense for an FDC NCO. You keep the section's manual gunnery as sharp as its knobology because you are the one who answers for both. The career mechanics: you are a BLC graduate (required for the stripe) with the ALC packet built for the next slot window. You hold the FDC computer / chief-computer certification current — the credential that says you own technical fire direction, digital and manual — and the FDC chief track opens at the next slate. Your ACFT floor is higher now (560+ is the working bar; FDC NCOs run the same PT the rest of the battery does and the section measures the new sergeant first). You keep the promotion-point engine running for the staff sergeant board — weapons quals, schools, CLEP/DSST/TA, structured self-development — but at SGT the points matter less than the NCOER and the certifications. The 131A Field Artillery Targeting Technician warrant track is a live conversation now for the technically strong; so is the 13Z senior-sergeant convergence further up the road, where the FA enlisted MOSes merge at the senior NCO level. Pull the current HRC promotion and SRB messages before you assume any number; do not quote a cutoff or a bonus you heard last quarter.
Career Arc
  • 01SGT pin-on after BLC graduation + cutoff score + chain release; the FDC safety gate becomes your signature.
  • 02First 90 days as chief computer / FDC section NCO: the section reads the new sergeant — do you check every solution, and do you counsel in writing?
  • 03First DA 4856 counseling cycle and first NCOER inputs on your soldiers — the documented leadership record begins.
  • 04FDC chief-computer certification current; ALC packet built for the next slot window.
  • 05First live-fire as the authorizing NCO — your safety check is the last gate before rounds, and the AAR readout is the BC's read of you.
  • 06First CTC rotation (NTC / JRTC / JMRC) as the section's authorizing NCO — the BC and 1SG learn whether your section can shoot when the screen goes black.
  • 07FDC chief (SSG) track conversation — the next rank where the whole FDC, its systems, and its safety become yours.
Common Screwups
  • ×Counseling soldiers verbally. The NCO who cannot show a DA 4856 chain when the Article 15 or the separation hits has a first sergeant who cannot defend him — and a soldier who beats the action on a technicality.
  • ×DUI / Article 15 as an NCO. It is a relief-for-cause conversation, a flag, an NCOER that follows you, and the loss of the access to fire-control systems and crypto fill that your billet requires — far heavier consequences than the same conduct as a junior soldier.
  • ×Letting your own ACFT slide while you correct soldiers' PT. A sergeant who fails the ACFT he enforces loses the section in a week; flagging per AR 600-8-2 then blocks your own ALC slot and SSG board.
  • ×Authorizing data you did not check because you trusted the computer. There is no defense when the round lands wrong; the safety check is the one job the chief computer cannot delegate.
  • ×Toxic leadership of the section — playing favorites, public humiliation, hazing a cherry. AR 600-20 makes it a relief-for-cause and an NCOER that ends the SSG track; the FDC runs on trust and a sergeant who breaks it breaks the section's data discipline with it.

A Day in the Life

  • 0500Wake. PT uniform on. You are at formation before your soldiers because the section reads the new sergeant first, and an NCO who shows up after his soldiers has already lost the standard.
  • 0530PT formation. Take accountability for your section. Brief the PT plan. You lead from the front — your soldiers will not grind a 2MR for an NCO who skips it.
  • 0600-0700Battery PT. You run the section's portion. You hold your own ACFT above the 560 floor you enforce; the section measures your score and your effort.
  • 0700-0900Hygiene, breakfast, change uniforms. You scan the morning's training schedule and the FDC's systems and readiness status before first formation.
  • 0900First formation. You take accountability for your soldiers, brief the FDC's day, and hand out section tasks. You know the BC's intent for the week because you read the calendar and sat the training meeting.
  • 0915-1130Work call. Running the section through the fire-mission cycle and the safety check, reconciling digital and manual solutions in drill, certifying soldiers against STP 6-13E tasks, validating database hygiene and crypto-fill accountability, or sitting the battery training meeting where the FDC's readiness is your brief to give.
  • 1130-1300Chow. You eat with the section or the other NCOs. The conversation is the gunnery train-up, the ALC slot, the soldiers who need counseling, and the next CTC rotation.
  • 1300-1500Afternoon work call. DA 4856 counseling on a soldier who is sliding, NCOER input drafting, the section's training plan toward the ARTEP-MTP 'T' rating, a system-down manual-gunnery rehearsal, and the FDC chief-computer certification work — yours and your soldiers'.
  • 1500-1630Final formation. You brief your section on the next day. Sensitive items and crypto-fill devices accounted for and checked back in — you sign for them, and the accountability is yours to defend to the FDC chief and the BC.
  • 1630Released the section. You stay to finish a counseling, close out the day's training record, or square the ALC packet — the NCO's day runs past the soldiers' release more often than not.
  • 1700-2000Personal time. Gym (hold the ACFT), study (the ALC prep, the TC 3-09.81 chapters you teach from, the AR 623-3 evaluation system). Married SGTs are home with family; the leadership reading and the counseling drafting often follow you home.
  • 2000-2200Counseling and admin cycle. Drafting the monthly 4856s, NCOER inputs, the section's training plan, the certification records. The new sergeant's paperwork load is real and it is the documented proof of your leadership.
  • 2200Lights out. Tomorrow starts at 0500.
  • Field rotation / live-fire FTXThe 24-hour FDC cycle, and now you are the authorizing NCO on your shift. You check every solution before it goes to the guns, you reconcile digital against manual, you validate the safety on every live mission, and you own the section's accountability and rest plan. A 14-day CTC rotation is where the BC and 1SG learn whether your section can shoot when the screen goes black — the answer to that is your reputation.

Weekly Cadence

The Mon-Fri rhythm at SGT level is built around the section you now run and the section's training plan you now own. Monday is planning and reset — you read the week's training schedule, set the section's tasks, check the FDC's systems and certification status, and read which of your soldiers showed up carrying a problem from the weekend that needs a counseling. Tuesday and Wednesday are STT days; you run the section through the fire-mission cycle, the safety check, the digital-manual reconciliation, and the certification tasks, and you grade whether each soldier can run a mission and plot manually cold. You are teaching and certifying now, not just executing. Thursday is often the maintenance / comms / admin day — deep PMCS on the FDC track and systems, crypto-fill accountability, the counseling and NCOER drafting that the week's events generated, and the ALC-packet and certification-record work. Friday is the battery-level event, the training meeting where you brief the FDC's readiness, and release. The new sergeant's career-defining work is the documented leadership record — the monthly 4856s, the accurate and on-time NCOER inputs, the section's certification status, and the honest readiness brief the BC plans around. The SGT who keeps the paper current and the section trained is the SGT the FDC chief puts forward for the next chief slate; the one who lets the counseling and the certifications drift is the one whose ALC slot and SSG board slip. Field rotations and CTC train-ups collapse the rhythm into the 24-hour FDC cycle, and now you run it as the authorizing NCO — every solution checked, every safety validated, the section's rest plan and accountability yours to manage so the center is never both unmanned and unchecked. When the battalion is in train-up, garrison time is for the section's reset, the soldiers' problems, and the family conversation about the nights you were in the field. The constant across both rhythms is the safety gate: in garrison you drill it, in the field you stand it, and either way your name is on the data the guns shoot.

Key Skills — How to Drill Each

  1. 01
    Run a battery FDC through a complete fire mission cycle — receive, compute, verify, authorize, send — at the ARTEP-MTP standard for your battery's METL.
    As the authorizing NCO you own the whole cycle, not just the computer's seat. Drill the section through the cycle on garrison weeks until the receive-compute-verify-authorize-send rhythm is automatic for every soldier in the center, and time it against the battery's METL fire-mission standard. The chief computer who can run the cycle and supervise the cycle at the same time — catching the computer's error while keeping the mission on time — is the one whose section passes the ARTEP-MTP 'T' rating. Build the section's drill so the verification step is never skipped under tempo, because tempo is exactly when it gets skipped.
  2. 02
    Reconcile the AFATDS solution against a manual GFT / TFT / plotting-board solution on every mission, and run the FDC manually when the system fails — without slowing the guns to a crawl.
    The reconciliation is your signature catch-mechanism. On every mission, the computer runs AFATDS and someone runs the manual backup, and you compare — a disagreement means an error that has to be found before 'shot.' Keep the section's manual gunnery sharp enough (TC 3-09.81 cold) that running the FDC fully manual after a system failure does not collapse the mission rate. Drill a full system-down scenario every quarter so the section has done it before the day it is real at JRTC. The chief computer whose section can shoot manually at speed is the one the BC plans around.
  3. 03
    Validate the safety-T card, surface danger zone, mask and clearance, and no-fire areas for every live mission — and refuse data that violates them. You are the last check before rounds.
    Own the safety computations in TC 3-09.81 and the battery's safety-T data and SDZ overlay for the live-fire. Validate every mission before you authorize it, and build the spine to call 'check fire' when a mission violates the safety, no matter who is on the net wanting rounds now. The chief computer who sends data that violates the SDZ to keep a senior leader happy is the chief computer who puts the round on friendlies. Refusing to authorize unsafe data is not insubordination — it is the single most important thing an FDC NCO does.
  4. 04
    Apply met and MTO procedures cleanly and teach the section why a missed met update is a missed target.
    Process the current met in AFATDS and by hand, and teach the section the discipline so it is automatic on every long-range mission — the round lands where the current met says, not where the old met said. Run the MTO and subsequent corrections clean. Build a training block that shows the cherries the actual miss distance from a stale met at the battery's max range, because the lesson lands when they see the number. The section that treats the met update as a habit is the section whose missions are on target; the one that treats it as optional is the one in the check-fire.
  5. 05
    Write a legally defensible DA 4856 on a soldier who is sliding, with a measurable Plan of Action signed before he leaves the office.
    ATP 6-22.1 is the counseling-process reference. The defensible 4856 names the specific deficiency, ties it to the standard, lays out a measurable Plan of Action with dates, and is signed by the soldier before he leaves. Counsel monthly on every soldier and event-counsel on every problem — the paper trail is what lets the first sergeant defend you when the Article 15 or the separation hits, and what lets a soldier actually fix the problem. The sergeant who counsels verbally has nothing to show; the one who counsels in writing has the contract.
  6. 06
    Counsel a cherry computer on AFATDS, manual gunnery, database hygiene, and the safety check in language the soldier repeats to the next cherry behind him.
    Developing the next computer is now your output. Teach the why behind the safety check and the manual backup, not just the steps — the cherry who understands he is the safety gate drills the backup without being told. Run a recurring STT block, grade whether the cherry can run a mission and plot manually at the end, and document the certification. The chief computer whose cherries can run the center cold is the one the FDC chief puts forward for the next chief-computer slate.

Manuals & References — What Chapters Matter

  • TC 3-09.81 — Field Artillery Manual Cannon Gunnery.
    Own it cover-to-cover; you are the section's reference now. The manual gunnery standard, the technical fire control solution, the safety computations, the met application, the misfire and check-fire procedures, the danger-close considerations. When a soldier or a new lieutenant disputes a number, the answer is in this manual and you are the one who quotes the chapter and page.
  • TC 3-09.8 — Field Artillery Gunnery.
    The companion on the technical and tactical fire control architecture. As the chief computer you use it to brief where the FDC's data comes from and how the technical and tactical fire control split between the FDO and the computer, and to train the section on the whole gunnery problem they sit inside.
  • ATP 3-09.50 — The Field Artillery Cannon Battery.
    The battery-level doctrine you brief from. Read the FDC organization, battery operations, and emplacement / displacement chapters; this is the reference you use to defend the FDC's readiness and training plan to the FDC chief and the BC in the battery's voice.
  • FM 3-09 — Field Artillery Operations; ATP 3-09 — Fires.
    The umbrella manuals for the fires warfighting function. As an NCO you read these to understand the BCT and joint fires architecture your section plugs into — where the call for fire originates, how the FA battalion supports the brigade scheme of fires — so your section's work is informed by the larger picture, not just the screen.
  • STP 6-13E — Soldier's Manual, MOS 13E; AR 600-20 — Army Command Policy; ATP 6-22.1 — The Counseling Process.
    STP 6-13E is the task list you run STT off and certify your soldiers against. AR 600-20 is the command-policy reference — fraternization, equal opportunity, the relationship boundaries that an NCO with soldiers under him must know cold. ATP 6-22.1 is the counseling-process reference for the DA 4856 chain you now own.
  • TC 7-22.7 — Army NCO Guide; AR 623-3 — Evaluation Reporting System.
    TC 7-22.7 is the NCO's guide to the NCO role you just stepped into. AR 623-3 governs the evaluation reporting system — you are writing NCOER inputs now and you need to understand how the support form, the rater, and the senior rater profile work so your soldiers get the evaluations their performance earned.

Standards — How to Hit Each

  • BLC graduate (required); ALC packet built for the next slot window.
    You hold BLC or you would not have pinned. The next gate is the Advanced Leader Course; build the ALC packet early through your training NCO and ATRRS so the slot drops on your timeline, not the brigade's leftover seats. ALC deepens the technical and leadership track toward SSG and the FDC chief role; the SGT who shows up to ALC having kept the manual gunnery and the leadership doctrine sharp graduates strong and pins SSG on schedule.
  • FDC computer / chief-computer certification current — the credential that says you own technical fire direction, digital and manual; FDC chief track open at the next slate.
    Keep the certification current by running and being graded on the full mission cycle — receive, compute, verify, authorize, send, react to system failure — digital and manual, at the ARTEP-MTP standard. The FDC chief and the BC use the certification record to build the next chief-computer slate; the SGT whose certification is current and whose section's certifications are current is the one whose name goes forward. Let it lapse and you are the NCO who has to re-earn the chain's read of your technical depth.
  • ACFT 560+ as a floor — FDC NCOs run the same PT the rest of the battery does and the section measures.
    560 is the working NCO floor; the section measures the new sergeant's score first. Build it with strength volume, interval running for the 2MR, and grip work, and hold it because a sergeant who fails the test he enforces loses the section. Lead the section's PT from the front — your soldiers will not grind a 2MR for an NCO who skips it. The screen-bound work makes the cardio easy to neglect; do not.
  • FDC certified at the ARTEP-MTP 'T' rating on the fire-mission collective tasks the battery METL calls for, digital and manual.
    Drive the section's training plan toward the 'T' (Trained) rating on every fire-mission collective task the battery METL requires — and at both digital and manual, because a section that can only certify on AFATDS is one system failure from non-mission-capable. Build the dry-fire reps, schedule the live-fire certification, run the system-down scenario, and document the rating. The chief computer whose section certifies 'T' digital and manual is the one the BC trusts at the CTC.
  • Promotion-points stacked for the SSG board — weapons quals, schools, CLEP/DSST/TA, correspondence / structured self-development — reviewed quarterly.
    The SSG board runs on the NCOER and the certifications more than the raw points, but keep the engine running: weapons quals current, college credit growing via the Army's tuition assistance (use it — it is real money), structured self-development complete, schools (Air Assault, Airborne, the FA-track courses) on the record. Review the worksheet quarterly. At SGT the differentiator is the documented leadership record and the section's readiness, but the points still gate the board, so do not let them drift.

Technical Mistakes — Concrete Consequences

  • Authorizing data you did not check because you trusted the computer.
    The chief computer who rubber-stamps a solution and the round lands on friendlies has no defense — the safety check is the whole job, and it is the one step you cannot delegate. There is no recall in flight. The investigation finds that the authorizing NCO did not reconcile the solution, and that is a career-ending finding for an FDC NCO. Check every solution against your own, digital and manual, every mission, no matter how tired the section is or how hot the net runs.
  • Letting the manual backup atrophy across the section.
    The day AFATDS drops on a live mission and the FDC cannot plot, the guns sit silent and the BC is in your AAR — and 'the system was down' is not a defense for an FDC NCO, because the manual backup is exactly what you are supposed to keep ready for that day. The section's manual gunnery is your responsibility now; drill a full system-down scenario every quarter so it is rehearsed before it is real.
  • Skipping the met / MTO update on a long-range mission.
    Met changes; the round lands where the current met says, not where the met from two hours ago said, and the longer the range the bigger the miss. As the authorizing NCO it is your check that should have caught the stale met. The round lands long or short, the FDC chief and the BC are in your AAR slide, and the safety officer calls a check-fire on the net. Build the met discipline into the section's habit so it is never the gap.
  • Counseling soldiers verbally.
    The NCO who cannot show a DA 4856 chain when the Article 15 hits has a first sergeant who cannot defend him — and a soldier who walks because the leadership has no documented record of correction. Verbal counseling is invisible to the system; it does not protect the soldier, the section, or you. Counsel in writing, monthly and on every event, with a signed Plan of Action.
  • Letting the FDC's sensitive-item and crypto-fill accountability slide.
    The computers, the fill devices, and the comm gear are sensitive items and you sign for them now. Property loss at NCO level triggers a 15-6, eats the battery training schedule while the search runs, and lands on your NCOER — and a lost or compromised crypto fill is a far heavier matter than a lost piece of hand-receipt gear. Account for it every shift change; the FDC chief and the BC plan around the assumption that your accountability is airtight.

Career Decisions at This Rank

  • ALC slot timing and the FDC chief track.
    The Advanced Leader Course is the next professional-military-education gate toward SSG and the FDC chief role. Build the packet early through your training NCO and ATRRS so the slot drops on your timeline. The decision is the same shape as BLC was — push for the earliest slot that does not collide with a deployment or CTC rotation, but do not pass on a slot for imperfect timing. ALC plus the FDC chief-computer certification is what positions you for the next chief slate; the SGT who delays ALC delays the whole SSG timeline.
  • 131A Field Artillery Targeting Technician warrant officer packet.
    The 131A FA Targeting Technician warrant path is the way for the technically strong 13E to stay deep in the gunnery and targeting lane instead of moving toward the broad NCO leadership track at SSG and above. At SGT you have the technical credibility (manual gunnery mastery, the FDC certifications, a clean record) the packet rests on, and it is a live decision now. Talk to a 131A warrant in your FA battalion or DIVARTY about the prerequisites, the board, and the WOCS / WOBC pipeline. The honest test: do you want to keep solving the gunnery and targeting problem at depth (warrant), or lead and develop soldiers and eventually run the FDC and the section as an NCO (the SSG / FDC chief / 13Z track)?
  • Re-enlistment with bonus (SRB) at the SGT window.
    The 13E SRB at the SGT window has moved through wide ranges per the HRC SRB MILPER — pull the current message before signing anything. The decision interacts with your career direction: a re-up that locks in your MOS and a long contract is right if you are committed to the FDC chief or warrant track, and a trap if you are weighing an ETS or a reclass. Run the math twice, factor the family, and talk to the career counselor. If the math only works with the bonus, the decision is really about whether you want the next six years in this seat — answer that first, then sign.
  • Stay technical (chief computer / FDC chief) vs. broaden for the senior-NCO track.
    At SGT you are on the technical track — chief computer, then FDC chief at SSG. Further up, the FA enlisted MOSes converge at the 13Z senior sergeant level, where you lead across the battery and battalion rather than running a single FDC. The decision over the next few years is how technical to stay versus how broad to go: the deep-technical soldier may aim for 131A warrant; the broad-leadership soldier stays enlisted toward FDC chief, platoon sergeant, and 13Z. Neither is wrong; both need you to be excellent as a SGT first. Talk to your FDC chief and the FA battalion CSM about which track fits you, and build the record that keeps both doors open.
  • Drill Sergeant / instructor at Fort Sill vs. staying in the firing battery.
    A broadening assignment — Drill Sergeant, or an instructor billet at the Field Artillery School at Fort Sill teaching the next generation of 13Es — is a strong career move that shows the chain you can develop soldiers at scale, and it carries the special-duty assignment pay and the resume weight that the SSG and SFC boards reward. The trade is two-to-three years out of the firing battery and away from the gunnery you came up in. The decision is timing: a broadening tour after you have solidified as a chief computer reads as well-rounded; one taken to escape a hard section reads as avoidance. Talk to the FA battalion CSM about when a broadening tour fits your timeline.

How the Seat Varies by Unit Type

  • Infantry BCT FA battalion FDC — M119A3 105mm (10th MTN, 25th ID, 101st AAB, 173rd, 82nd ABN)
    The SGT chief computer in an IBCT FDC authorizes missions for the lightest, most mobile gun, which means the section displaces often and the safety and reconciliation have to hold up under a faster, shorter-range tempo. You drill the section to rebuild the database and re-establish comms fast after every move, and you keep the manual gunnery sharp because a light FDC in a JRTC swamp will lose the system. The community values the FDC NCO whose section can stay digital and manual through a JRTC rotation; Air Assault and Airborne are the visible school credentials.
  • Stryker BCT FA battalion FDC — M777A2 155mm towed (2nd Cav, 2/2 ID, 1/25 ID, 3/2 ID)
    The SBCT SGT authorizes longer-range 155mm missions and keeps the FDC moving with the Stryker companies, which puts more weight on the met validation and the firing-table precision in your safety check — a met error at 155mm range is a bigger miss than at 105mm. NTC and JMRC are the home CTCs. The chief computer who drills the section's displacement and database-rebuild so the FDC is back in operation fast after every move is the one the BC trusts on the night shift of a rotation.
  • Armored BCT FA battalion FDC — M109A6 Paladin / M109A7 PIM 155mm self-propelled (1AD, 1ID, 3ID, 4ID, 1CD)
    The ABCT SGT runs the most digitally integrated FDC, where the technical fire control runs between AFATDS and the platform's onboard mission computer — your reconciliation now spans the FDC's solution and the gun's onboard solution, and you train the section to catch a disagreement between them. PMCS on the FDC's tracked vehicle is heavier and the gunnery cycle is the institutional rhythm. NTC at Fort Irwin is the home rotation; the chief computer's certification record and the section's are built inside that cycle.
  • DIVARTY HHB / FA brigade headquarters FDC
    A SGT in a DIVARTY or FA brigade HHB FDC works closer to the battalion- or brigade-level fire-control and coordination picture — the higher-echelon AFATDS node, the fire support element, the survey / met / radar coordination — than a firing-battery FDC chief. The leadership of soldiers is the same, but the technical scope is broader and the work is good preparation for the warrant path and the senior-NCO track. The firing-battery FDC chief experience is still the one the SSG and FDC chief slates weigh most, so plan a rotation back into a firing battery if you want that record.
  • FA battalion serving a National Guard / Reserve BCT (drilling reservist SGT 13E)
    The NG/USAR SGT chief computer leads and certifies a section over drill weekends and annual training rather than continuous garrison cycles, which makes the section's manual-gunnery sustainment and the certification harder to keep current — and makes your own self-study and your soldiers' the differentiator. The ALC slot, the NCOER, and the SRB follow component-specific timelines. The civilian-side employment piece is the load — SCRA and USERRA protections are real but require active management for you and your soldiers. Pull the right MILPER and SRB message from your readiness NCO; active-component numbers do not apply.

What Good Looks Like at This Rank

The good 13E SGT runs an FDC whose fire-mission discipline, database hygiene, and live-fire AAR readout make the BC and the 1SG ask the PSG if they can keep this NCO. His computers run AFATDS cold and plot manually faster than the new lieutenant believes possible; his reconciliation of the digital and manual solution on every mission has caught errors that would have put rounds where they should not go; his safety check has never failed. He authorizes nothing he did not check, and when the net runs hot and someone senior wants a mission that violates the SDZ, he has the spine and the data to call the check-fire — because he understands that being the last gate before rounds is the reason the job exists. As a leader he counsels in writing, monthly and on every event, with a signed Plan of Action, so the first sergeant can defend him and the soldier can actually fix the problem. His NCOER inputs are accurate and on time; his soldiers get the evaluations their performance earned. He develops the next computer deliberately — the cherries under him can run a mission and plot manually because he taught them the why behind the safety check, not just the steps. He leads the section's PT from the front and holds his own ACFT above the floor he enforces. His sensitive-item and crypto-fill accountability is airtight, every shift change, every time. His career engine is running without drama: BLC done, ALC packet built for the next window, the FDC chief-computer certification current and his section's certifications current, the promotion-point worksheet maintained for the SSG board, and the FDC chief already putting his name forward for the next chief slate. He knows the BC's intent and the FA battalion CSM's standard, and he can brief FDC readiness in the battery's voice — equipment, comms, training, and an honest accounting of which soldiers can and cannot run a mission cold. The good 13E SGT is the NCO whose section can shoot when the screen goes black and whose name on the firing data the whole battery trusts.

Preview — The Next Rank

E-6 Staff Sergeant — the FDC chief — is the next rank, and it is where the whole Fire Direction Center becomes yours. As an FDC chief you are the senior technical fire-direction NCO in the battery: you sign for the FDC's AFATDS suite, the vehicles, the comms, and the fire-control equipment, and you own the technical accuracy and the safety of every round the battery fires. Where the chief computer checks the solution, the FDC chief owns the system that produces it — the training plan, the certifications, the equipment readiness, and the soldiers who compute. When the BC asks if the battery can shoot, you are the answer. The load broadens from running the section to running the FDC and defending it up the chain. You build the FDC training plan and certify your computers digital and manual; you develop the FDC's input to the battery Quarterly Training Brief — METL-aligned, resource-realistic, with a clean line of effort the BC defends at the battalion BUB. You run FDC live-fire certification from concept to AAR, including the risk management, the met plan, the safety-T validation, and the manual-backup contingency for an AFATDS failure. You write NCOERs now on the SGTs under you, and you translate the BC's intent and the fire support plan into a center that produces correct firing data inside the time standard from the FO's call. You are in the TOC more than you want and on the chart less than you remember. The SSG who succeeds is the one who built the foundation as a SGT — the manual mastery so deep the section can shoot when the screen goes black, the safety check that has never failed, the documented leadership record, and the FDC chief-computer certification that says he can run technical fire direction in his sleep. Build all of that now. Keep the ALC packet moving, keep the section certifying 'T' digital and manual, keep counseling in writing, and keep your name on data the whole battery trusts. The good SGT chief computer becomes the good SSG FDC chief by being the NCO the BC already trusts to answer 'can the battery shoot?' with his own name on the line.
FAQ

13E E5 — Frequently Asked Questions

Q01What does a E5 13E (Cannon Fire Direction Specialist) actually do?
You run the technical fire direction for a cannon battery as the chief computer or an FDC section NCO.
Q02What's the most important thing to know as a E5 13E?
You are an NCO now, and you own the safety check.
Q03What does a typical day look like for a E5 13E?
Time-blocked day at the E5 13E rank tier: 0500 Wake. PT uniform on. You are at formation before your soldiers because the section reads the new sergeant first, and an NCO who shows up after his soldiers has already lost the standard, 0530 PT formation. Take accountability for your section. Brief the PT plan. You lead from the front — your soldiers will not grind a 2MR for an NCO who skips it, 0600-0700 Battery PT. You run the section's portion. You hold your own ACFT above the 560 floor you enforce; the section measures your score and your effort, 0700-0900 Hygiene, breakfast,…
Q04What mistakes get E5 13E soldiers fired or relieved?
Counseling soldiers verbally. The NCO who cannot show a DA 4856 chain when the Article 15 or the separation hits has a first sergeant who cannot defend him — and a soldier who beats the action on a technicality; DUI / Article 15 as an NCO. It is a relief-for-cause conversation, a flag, an NCOER that follows you, and the loss of the access to fire-control systems and crypto fill that your billet requires — far heavier consequences than the same conduct as a junior soldier;…
Q05What career decisions matter most at the E5 13E rank tier?
ALC slot timing and the FDC chief track — The Advanced Leader Course is the next professional-military-education gate toward SSG and the FDC chief role. Build the packet early through your training NCO and ATRRS so the slot drops on your timeline. The decision is the same shape as BLC was — push for the earliest slot that does not collide with a deployment or CTC rotation, but do not pass on a slot for imperfect timing. ALC plus the FDC chief-computer certification is what positions you for the next chief slate; the SGT who delays ALC delays the whole SSG timeline;…
Q06What's next after E5 for a 13E (Cannon Fire Direction Specialist) in the Army?
E-6 Staff Sergeant — the FDC chief — is the next rank, and it is where the whole Fire Direction Center becomes yours.
Q07What manuals and regulations does a E5 13E need to know cold?
TC 3-09.81 — Field Artillery Manual Cannon Gunnery (own this manual cover-to-cover).; TC 3-09.8 — Field Artillery Gunnery.; ATP 3-09.50 — The Field Artillery Cannon Battery.

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Published by the Honest MOS Editorial DeskVerified against DoD/.gov sourcesUpdated May 2026Editorial standards