Assault Amphibious Vehicle / Amphibious Combat Vehicle Crewmember

You are the new crewmember. The vehicle smells like diesel and saltwater, the track commander is watching whether you can function in a space the size of a closet, and the infantry Marines in the back are counting on you to get them from ship to shore alive.

You graduated MCRD and shipped to Assault Amphibian School at Camp Pendleton (West Coast) or trained at Camp Lejeune (East Coast) to learn the platform — AAV-7A1 (the legacy Amtrac) or ACV 1.1 (the replacement, BAE Systems, 8x8 wheeled). The schoolhouse teaches you vehicle operation, waterborne procedures, basic maintenance, turret operation, and the crew drills that keep a 30-ton vehicle from killing its own crew during ship-to-shore movement. When you arrive at your battalion — 1st, 2nd, or 3rd Assault Amphibian Battalion — you are the junior crewmember on a vehicle crew of three to four Marines. Your day is maintenance: PMCS on the vehicle, cleaning the troop compartment, servicing the engine and drive train, prepping weapons (Mk 19, M2 .50 cal), and learning the water operations procedures that make this MOS distinct from every other vehicle crew in the Marine Corps. In the field you are the crewmember who handles the ramp, manages the troop compartment, communicates with the embarked infantry, and operates the turret-mounted weapons under the track commander's direction. The AAV-to-ACV transition is the defining event of the community right now — some battalions are running both platforms simultaneously, which means you may learn two completely different vehicles in your first enlistment.

• 01Conduct PMCS on the AAV-7A1 or ACV to the applicable technical manual standard — before, during, and after operations. The track commander inspects your work; the battalion maintenance chief inspects the track commander.
• 02Operate the vehicle turret and weapons systems — Mk 19 40mm grenade launcher, M2 .50 cal machine gun — including loading, clearing, and reducing stoppages under the track commander's direction.
• 03Execute waterborne entry and exit procedures — launching from an amphibious ship well deck, surf-zone transit, beach approach, and ramp operations — per the NAVMC 3500 (18XX T&R Manual) standard.
• 04Manage the troop compartment during ship-to-shore movement — communicate with the embarked infantry squad, manage the ramp, and execute emergency egress procedures (the vehicle can sink, and you need to get everyone out).
• 05Perform basic crew-level maintenance — engine, drive train, hull integrity checks, bilge pump operation, CBRN protection system — to keep the vehicle mission-capable between echelon maintenance events.
• 06Operate vehicle communications equipment — the vehicle intercom and mounted radio — well enough that the track commander can talk to the platoon leader and the ship without relaying through you.

• —Applicable TMs for AAV-7A1 (TM 2510-15 series) and/or ACV (verify current TM designations against MCPEL — the ACV technical manuals are relatively new and revision-tracked).
• —NAVMC 3500 (18XX T&R Manual) — Training and Readiness Manual for the Assault Amphibian community (governs every individual and collective task).
• —MCWP 3-33 — Ship-to-Shore Movement (the doctrinal framework for everything the 1833 does in the water — verify current designation against MCPEL).
• —MCO 6100.13 — Marine Corps Physical Fitness, Body Composition, and Military Appearance.
• —MCO 1500.59 — T&R Program.
• —MCDP 1 — Warfighting (every Marine reads it).

• —1st-Class PFT and CFT under MCO 6100.13 — the vehicle crew is a small team and the track commander notices the Marine who cannot keep up outside the vehicle.
• —Assault Amphibian School complete with passing marks — the schoolhouse evaluation shapes your first assignment.
• —PMCS proficiency demonstrated to the track commander's satisfaction before the first waterborne operation — the vehicle's seaworthiness depends on the maintenance you did yesterday.
• —Water survival qualification current — the AAV and ACV operate in the ocean, and the egress drills are not optional when a vehicle takes on water.
• —Annual Rifle Qualification at Expert or 1st-Class — you are still a rifleman. The AAV community does not excuse poor marksmanship.

• —Skipping PMCS steps because the vehicle "ran fine yesterday." The hull integrity check you skipped is the leak that floods the troop compartment during a surf-zone transit.
• —Failing to secure the troop compartment before waterborne operations — loose gear becomes a drowning hazard when the vehicle pitches in surf.
• —Not knowing the emergency egress procedures cold. If the vehicle floods, you have seconds to get the hatch open, get the embarked Marines moving, and get yourself out. Hesitation is how Marines drown.
• —Mishandling the turret weapons — a runaway Mk 19 or an accidental discharge of the M2 during a formation movement is an incident that kills Marines and ends careers.
• —Treating the ACV transition as "just a new vehicle." The ACV is wheeled, not tracked; the waterborne characteristics are different; the maintenance procedures are different. Assuming the old procedures apply to the new platform is how you break things.

The good junior 1833 is the crewmember the track commander trusts to PMCS the vehicle alone and report honest findings — not "all good" when there is a hydraulic leak. By month twelve the track commander is teaching this Marine to drive; by month eighteen the platoon sergeant has this Marine's name on the list for the next swim qualification and the Corporals Course conversation is starting.

You are a qualified vehicle operator. The track commander trusts you behind the wheel — or in the driver's station, depending on the platform — and a three-Marine crew depends on you to put the vehicle where it needs to be, on land and in water.

At Cpl you are the primary vehicle operator on an AAV-7A1 or ACV crew, and you are beginning to function as a junior NCO responsible for training the new crewmembers below you. You drive the vehicle in formation, in convoy, in the surf zone, and from the well deck of an amphibious ship during ship-to-shore movement exercises with the MEU or amphibious squadron. You are also the crew member the track commander relies on for vehicle maintenance beyond basic PMCS — troubleshooting engine faults, reporting deficiencies that need echelon maintenance, and keeping the vehicle mission-capable between the maintenance chief's inspection visits. You train the boot crewmembers on PMCS, troop compartment procedures, and turret operation. You are studying for Sgt, tracking your composite score, and completing Corporals Course.

• 01Drive the AAV-7A1 or ACV in all conditions — road march, cross-country, surf-zone entry/exit, open-ocean transit, and well-deck launch/recovery — per the T&R standard and the track commander's orders.
• 02Execute surf-zone operations as the vehicle operator — reading the surf, timing the entry, maintaining vehicle heading through the wave break — without stalling, swamping, or losing the formation.
• 03Conduct intermediate-level vehicle troubleshooting — engine faults, drive train issues, bilge pump failures, turret malfunctions — and accurately report deficiencies the crew cannot fix to the maintenance chain.
• 04Train junior crewmembers on PMCS procedures, troop compartment management, weapons operation, and emergency egress — your instruction quality shows up in the next vehicle inspection.
• 05Operate the vehicle weapons systems — Mk 19, M2 .50 cal — in both mounted and dismounted configurations, including malfunction reduction under pressure.
• 06Brief and execute the crew drills for emergency scenarios — vehicle flooding, fire, roll-over, CBRN contamination — so the entire crew can perform them without the track commander walking them through it.

• —Applicable TMs for AAV-7A1 and/or ACV (verify current designations).
• —NAVMC 3500 (18XX T&R Manual) — Cpl-level individual and collective tasks.
• —MCWP 3-33 — Ship-to-Shore Movement.
• —MCO 1610.7 — Performance Evaluation System (you write proficiency and conduct marks on junior Marines now).
• —MCO 1400.32 — Marine Corps Promotion Manual (composite scores, cutting scores for 1833 to Sgt).
• —MCO 6100.13 — Marine Corps Physical Fitness.

• —Corporals Course graduate — required and gated. Do not let the slot drop.
• —Vehicle operator qualification on the primary platform your battalion runs (AAV, ACV, or both) — signed and current.
• —1st-Class PFT and CFT — the platoon watches whether the vehicle operator can function outside the vehicle.
• —Water survival qualification current at the level the battalion requires — this is a waterborne MOS.
• —Composite score tracked monthly — pull the current MARADMIN cutting score for 1833 to Sgt.

• —Driving into surf you do not have the skill or the vehicle condition to handle. The ocean does not care about your timeline; a swamped AAV in the surf zone kills Marines.
• —Reporting "vehicle up" on a PMCS when you know there is a deficiency you do not want to deal with. The maintenance chief finds it later; the track commander eats the counseling; you eat the next one.
• —Skipping the emergency egress drill because "everyone knows it." The new Marine in the troop compartment does not know it. The drill exists because AAVs and ACVs have drowned crews.
• —Treating the ACV transition training as a check-the-box event. The wheeled platform handles differently in water than the tracked AAV — the operator who assumes they are the same is the operator who puts a vehicle sideways in the surf.
• —Neglecting to train the junior crewmember because "I will just do it myself." The day you are at sick call is the day the vehicle goes out with a crew that cannot function because you never taught them.

The good Cpl 1833 is the vehicle operator the track commander puts at the wheel for the hardest surf-zone entry of the exercise because the vehicle comes through clean, the crew is composed, and the infantry Marines in the back do not even know the surf was rough. Corporals Course is done, the composite score is tracking, and the platoon sergeant is putting this Cpl on the next swim qualification roster.

The vehicle is yours. The crew, the platform, the weapons, the mission, and the lives of every Marine in the troop compartment — you are the track commander and everything that happens in and to that vehicle is your responsibility.

You are the track commander on an AAV-7A1 or ACV — responsible for the vehicle, the two or three crew members, the turret weapons, and the embarked infantry squad during ship-to-shore movement. You fight the vehicle — directing the driver through the surf zone, calling fires from the turret, managing the troop compartment load, and making the real-time decisions that keep a 30-ton vehicle from becoming a coffin in heavy seas. In garrison you own the vehicle's maintenance status, you write FitReps on your Cpls, you train the crew through the T&R progression, and you defend your vehicle's readiness at the platoon sergeant's vehicle inspection. You coordinate directly with the infantry platoon your vehicle supports — the infantry PLT CDR's plan depends on your vehicle being where he needs it when the ramp drops. Sergeants Course is behind you or in progress, and the SSgt board and the platoon sergeant billet are the next career gates.

• 01Fight the vehicle — direct the driver through surf-zone transit and beach approach, direct the turret gunner onto targets, manage the troop compartment ramp drop sequence, and make the call on whether to continue into bad surf or abort.
• 02Conduct and supervise a complete vehicle PMCS cycle — not just sign the checklist but inspect the crew's work and know the vehicle's real condition before reporting to the platoon sergeant.
• 03Write FitReps on crew Cpls — observed performance, specific maintenance and operational contributions, honest assessment that the reporting senior can defend.
• 04Coordinate with the supported infantry platoon on the ship-to-shore plan — your vehicle is their ride, and the plan needs to account for what the vehicle can and cannot do in the conditions you are facing.
• 05Train the crew through emergency scenarios — flooding, fire, roll-over, CBRN — until every member can execute without prompting and under stress.
• 06Manage the AAV-to-ACV transition at the crew level — if your battalion is fielding the new platform, you own the crew's proficiency on both systems during the overlap.

• —Applicable TMs for AAV-7A1 and/or ACV.
• —NAVMC 3500 (18XX T&R Manual) — Sgt-level and squad-level collective tasks.
• —MCWP 3-33 — Ship-to-Shore Movement.
• —MCO 1610.7 — Performance Evaluation System (you write FitReps on your crew now).
• —MCO 1400.32 — Marine Corps Promotion Manual (cutting scores for 1833 to SSgt).
• —MCRP 3-10A.4 — Marine Rifle Platoon (understand the infantry platoon you support — their plan is your plan).

• —Sergeants Course graduate — required before competing for SSgt.
• —Track commander qualification current on the platform your battalion operates.
• —1st-Class PFT and CFT — the crew watches the track commander, and the infantry Marines in the back watch harder.
• —Vehicle MCCRE / pre-deployment evaluation passed at the unit standard — the platoon sergeant's FitRep depends on your vehicle's performance.
• —FitRep relative value above battalion average — the SSgt board for 1833 reads every narrative in a mid-density MOS.

• —Taking a vehicle into surf conditions beyond its capability or your crew's proficiency because the timeline says go. The ocean kills Marines who do not respect it; the mishap investigation names the track commander who made the call.
• —Signing the PMCS as complete when you did not personally inspect the crew's work. The hydraulic failure at sea, the weapons malfunction in the turret — the track commander owns it.
• —Failing to brief the infantry on emergency egress procedures before waterborne operations. The infantry Marines in the troop compartment are not amphibian crewmembers — they need the brief every time.
• —Running the crew into the ground during pre-deployment training because "we need to be ready." The crew that is exhausted and resentful performs worse in the exercise than the crew that was trained hard and treated right.
• —Ignoring the ACV's different waterborne characteristics because "I know how to drive in the water." The ACV is not an AAV. The hull shape, propulsion, stability envelope, and surf limitations are different. Learn the platform or give up the track commander seat.

The good Sgt 1833 is the track commander the platoon sergeant puts on the lead vehicle during the hardest ship-to-shore exercise because the vehicle comes through the surf clean, the crew is disciplined, the infantry gets to the beach dry and oriented, and the ramp drops where the platoon commander said it would. The crew re-enlists because this track commander taught them the job and treated them like Marines.

You are the senior NCO of an assault amphibian platoon — four to six vehicles, twelve to eighteen crewmembers, and the responsibility of delivering an infantry platoon from ship to shore across an ocean that does not care about your plan.

You run the platoon's enlisted side — training, maintenance, qualifications, evaluations, and the daily coordination between your vehicles and the infantry platoon you support. You write FitReps on three to four Sgt track commanders, you defend the platoon's vehicle readiness at the company inspection, and you build the training plan that takes the platoon from garrison maintenance cycle to deployment-ready ship-to-shore capability. You brief the platoon leader — usually a young lieutenant who has never been in the surf in a 30-ton vehicle — on what the platoon can actually do in the conditions you are facing, and you cover his blind spots without publicly correcting him. The Career Course and the SSgt-to-GySgt board define your next decade. If the ACV transition is underway in your battalion, you are managing the parallel training timeline — some crews on AAV, some on ACV — without losing readiness on either.

• 01Build a platoon training plan that takes the crews from garrison to deployment-ready — T&R-aligned, resource-bid, coordinated with the company and the embarked infantry.
• 02Write FitReps on three to four Sgt track commanders that the reporting senior can defend — observed operational performance, maintenance results, crew development.
• 03Advise the platoon leader on vehicle capabilities, surf-zone limitations, and ship-to-shore planning realities — the lieutenant plans the mission; you tell him what the vehicles can actually do.
• 04Run the platoon's maintenance program — vehicle readiness rates, deadline status, parts requisitions, coordination with the battalion maintenance officer — and report honest numbers.
• 05Manage the AAV-to-ACV transition at the platoon level — crew proficiency on both platforms, mixed-fleet operations if applicable, and the training timeline that keeps the platoon deployable.
• 06Run a casualty or serious-incident response at the platoon level — waterborne mishaps in this MOS can involve drowning, and the response procedures are not hypothetical.

• —Applicable TMs for AAV-7A1 and/or ACV.
• —NAVMC 3500 (18XX T&R Manual) — platoon-level collective standards.
• —MCWP 3-33 — Ship-to-Shore Movement.
• —MCO 1610.7 — Performance Evaluation System.
• —MCO 1400.32 — Marine Corps Promotion Manual (SSgt-to-GySgt board mechanics).
• —MCRP 3-10A.4 — Marine Rifle Platoon and applicable company-level pubs (understand the supported infantry element).

• —Career Course completed or in progress — required for GySgt competition.
• —Platoon vehicle readiness rate at or above the battalion standard — the company commander sees the number every week.
• —1st-Class PFT and CFT — the platoon watches the platoon sergeant more than anyone except the company gunny.
• —Platoon MCCRE / pre-deployment evaluation rated at the unit standard or above.
• —FitRep relative value above battalion average — one weak cycle moves the GySgt timeline by years.

• —Letting a track commander take a vehicle into surf you would not take it into yourself. The platoon sergeant who defers to the timeline over the conditions owns the mishap.
• —Allowing vehicle readiness reporting to be optimistic. The maintenance officer builds the deployment readiness case on your numbers — inflated numbers break the plan at the worst possible time.
• —Writing FitReps as wish lists instead of evaluations. The reporting senior remembers the SSgt who inflated, and the board reads the pattern.
• —Letting the AAV-to-ACV transition training slide because "we will figure it out when the vehicles arrive." The crews who train on the new platform before fielding execute; the ones who wait flounder.
• —Hiding platoon problems from the company gunny to protect the platoon's reputation. The company gunny finds out — usually from the lieutenant, in the worst possible meeting.

The good SSgt 1833 runs a platoon that performs identically whether the platoon sergeant is in the lead vehicle or in the COC. The track commanders are SSgt-board-ready, the vehicles are mission-capable, the infantry platoon commander trusts the amphibians to get his Marines to the beach, and the company commander is willing to lose this SSgt to B Billet because the battalion knows the Marine who comes back will be the GySgt the community needs.

You are the company gunny — or the operations chief at the battalion level. The assault amphibian community is small, the battalions are few, and every GySgt is known by name across the community. You are the SNCO the entire company runs through.

You run the company's training and tasking calendar in concert with the 1stSgt and the company commander. You manage 80-120 Marines — the platoon sergeants, the maintenance section, the operations cell — and you advise the CO on every enlisted decision. You set the standard in formation and in the surf zone. You write FitReps on four to six SSgts and Sgts, you run the company through pre-deployment training cycles, and you manage the AAV-to-ACV transition at the company level — which may mean running a mixed fleet of legacy and new platforms simultaneously. The SNCO Academy Advanced Course is the gate, and the MSgt-vs-1stSgt decision is on the horizon. If the community completes the ACV transition during your tenure, you will be the GySgt who either preserved institutional knowledge through the transition or let it die with the old platform.

• 01Build and defend a company training schedule that the CO can brief at battalion BUB — T&R-aligned, resource-realistic, with the ship-to-shore exercise schedule coordinated with the amphibious squadron.
• 02Write FitReps on platoon sergeants and senior track commanders that the battalion FitRep board can defend — maintenance results, operational performance, crew development.
• 03Run the company through a ship-to-shore exercise or pre-deployment evaluation as the senior NCO on the manifest — the company commander plans; you execute.
• 04Manage the AAV-to-ACV transition at the company level — training timeline, crew certification, maintenance program transition, institutional knowledge preservation.
• 05Brief the company commander honestly on enlisted morale, retention, vehicle readiness, and the gap between what the operations officer promised and what the company can deliver.
• 06Run a waterborne mishap response — the 18XX community has experienced drowning incidents in training; the response is not hypothetical and the company gunny owns it.

• —Applicable TMs for AAV-7A1 and ACV.
• —NAVMC 3500 (18XX T&R Manual) — company-level collective standards.
• —MCWP 3-33 — Ship-to-Shore Movement.
• —MCO 1610.7 — Performance Evaluation System.
• —MCO 1400.32 — Marine Corps Promotion Manual (GySgt-to-MSgt/1stSgt board mechanics).
• —MCO 5354.1 / MCO 1000.9 — SAPR and Equal Opportunity policy.

• —SNCO Academy Advanced Course graduate; Senior Course slated when MSgt board approaches.
• —Company vehicle readiness rate at or above the battalion standard — the battalion commander sees the slide every week.
• —1st-Class PFT and CFT — the formation watches the company gunny more than anyone except the 1stSgt.
• —Company MCCRE / ITX / ship-to-shore evaluation rated at the battalion standard or above.
• —FitRep profile that positions you for MSgt/1stSgt — relative value, attributes, and operational results aligned.

• —Letting a platoon sergeant take vehicles into conditions you would not approve if you were on the beach watching. The company gunny who defers to "the platoon sergeant's judgment" on waterborne safety owns the mishap investigation.
• —Allowing maintenance reporting to paint a rosier picture than reality. The battalion commander builds the deployment readiness brief on your numbers; wrong numbers break the plan.
• —Confusing being tight with the CO with being aligned with the CO. The company needs you to push back honestly, in his office, with the door closed.
• —Neglecting the institutional knowledge transfer during the ACV transition. The Marines who operated AAVs for decades know things about waterborne operations that the ACV TM does not cover — capture it or lose it.
• —Going around the 1stSgt to the BSgtMaj. You will be wrong on the facts and relieved on the spot.

The good GySgt 1833 is the SNCO the BSgtMaj sends to the worst company because the vehicles come back mission-capable, the crews come back certified, the FitReps come back honest, and the company's ship-to-shore evaluation is the one the battalion commander briefs to the regiment without an apology. The ACV transition is on track, the institutional knowledge is documented, and the SSgts are getting selected for GySgt.

You are the senior enlisted leader for the assault amphibian community at the battalion or regiment level. The community is small — three active battalions plus reserves — and every decision you make about training, standards, and the AAV-to-ACV transition shapes the community for the next generation.

As 1stSgt you run the battalion's enlisted force — 400-600 Marines across the companies, the maintenance section, and the headquarters element. You set the standard for the formation, you advise the BC on every enlisted decision, and you own the training calendar, the retention plan, and the climate that determines whether Marines re-enlist or walk. As MSgt you are the senior occupational SME — operations chief at the battalion or regiment, the 18XX MOS roadmap owner, or a staff position at HQMC shaping the community's future. As SgtMaj you advise the battalion or regimental commander on all enlisted matters and represent the community at the division level. As MGySgt you are the occupational pinnacle — the Marine HQMC calls when the 18XX T&R Manual needs rewriting or the ACV transition needs the voice of a Marine who has spent a career in the surf zone. The AAV-to-ACV transition is the defining event of this generation of the community — the senior enlisted who manage it well preserve institutional amphibious knowledge; the ones who do not let it die with the platform.

• 01Run a 1stSgt's call that produces actions — accountability, vehicle readiness, training calendar, discipline, family readiness, retention — in a formation that deploys on ships for months at a time.
• 02Advise the BC on the amphibious force — vehicle readiness rates, crew qualifications, the AAV-to-ACV transition timeline, retention, and the second-order effects of policy decisions on a community that spends more time at sea than most ground units.
• 03Mentor GySgts and the senior SSgt bench as the next 1stSgt / MSgt cohort — honest reads on troop-leadership vs. SME-track and the post-service market for vehicle maintenance and maritime operations experience.
• 04Preserve and transfer institutional amphibious knowledge during the AAV-to-ACV transition — the waterborne operations lessons that a generation of 1833 Marines learned in AAVs do not automatically transfer to the new platform without deliberate capture.
• 05Run a waterborne mishap memorial or casualty notification with the dignity it requires — the 18XX community has buried Marines who drowned in training, and the formation remembers how the senior enlisted carried it.
• 06Brief the regimental commander and the division on the state of the amphibious force — honest assessment of what the battalion can put in the water and what the transition timeline actually looks like.

• —MCWP 3-33 — Ship-to-Shore Movement (you teach and shape the doctrine now).
• —MCO 1610.7 — Performance Evaluation System (you rate or review the FitReps that decide the next slate).
• —MCO 1400.32 — Marine Corps Promotion Manual (1stSgt / SgtMaj / MGySgt board mechanics).
• —MCO 1900.16 / MCO P1900.16 — Marine Corps Retirement / Separation.
• —MCO 5354.1 — SAPR Program; MCO 1000.9 — Equal Opportunity.
• —The Sergeants Major Symposium reading list, the Commandant's Reading List, and the current Planning Guidance — especially any guidance on amphibious force structure and the ACV fielding timeline.

• —SNCO Academy Senior Course graduate; Sergeants Major Course at Marine Corps University before competing for command SgtMaj slate.
• —Battalion UCMJ rate, retention rate, vehicle readiness rate, and SAPR/EO climate in the top tier — the division SgtMaj reports against every peer 1stSgt.
• —Personal FitRep profile that the reporting senior can defend at HQMC — the bar is whether your rated GySgts and SSgts get selected.
• —Zero senior-enlisted-level integrity incidents — one ends the career permanently at this rank.
• —Post-service transition plan running 24-36 months out — VA disability claim filed pre-EAS, SkillBridge slot identified if applicable, civilian credential bridge mapped (vehicle maintenance, maritime operations, defense contracting).

• —Going public with disagreement with the BC. Take the disagreement in the office with the door closed; walk out aligned, every time.
• —Letting the AAV-to-ACV transition become a platform war between "old school" and "new school" Marines. The senior enlisted who frame it as generational conflict instead of managed transition lose the institutional knowledge on both sides.
• —Stopping personal engagement with waterborne operations because "I lead from the COC now." The 1stSgt who has not been in the surf zone in three years has lost the credibility to set the standard for Marines who are in it every week.
• —Letting a GySgt run a bad safety climate because of personal loyalty. Waterborne mishaps in this community kill Marines — the senior enlisted who tolerates a lax safety culture owns the investigation.
• —Confusing the warm-up to retirement with the job. Until you walk out of the formation for the last time, the formation is your job — boots are watching how you carry it.

The good 1stSgt / SgtMaj is the senior Marine every boot in the formation knows by face and reputation. The re-enlistment line forms after a hard deployment because the Marines trust the leader. The good MGySgt is the Marine HQMC calls when the 18XX T&R Manual needs rewriting or the ACV transition needs institutional voice — and the GySgts in the community quote the standard without knowing they are quoting this Marine. The AAV-to-ACV transition happened on this Marine's watch, the institutional knowledge was preserved, and the community is stronger for it.