Special Operations Officer

You are not yet a MARSOC officer. You are a Marine officer trying to become one — and the entire 0370 pipeline exists to screen you out as efficiently as possible. Your job at this tier is to survive Assessment & Selection and earn the right to start ITC.

You commission through OCS, NROTC, or the Naval Academy, spend six months at The Basic School, and then attend the Infantry Officer Course at Quantico before MARSOC will even consider your package. The 0370 MOS is not assigned at TBS — you enter the infantry pipeline as a 0302 and volunteer for MARSOC Assessment & Selection (A&S) from within the fleet. A&S is conducted at Camp Lejeune and runs roughly three weeks; selection rates vary by year-group and the Corps does not publish official pass-rate figures, but the attrition is real and it is not the kind of selection you can prepare for exclusively in a gym. If you pass A&S, you enter the Individual Training Course — roughly thirteen months at Camp Lejeune — where you train alongside enlisted Marine Raiders, Special Operations Candidates from other services, and a small cohort of fellow officers. ITC produces a Special Operations Officer who can plan, resource, and lead a Marine Special Operations Team (MSOT) across the full special operations activities spectrum: direct action, special reconnaissance, foreign internal defense, and unconventional warfare. As a newly designated 0370 lieutenant or first lieutenant, you are absorbing doctrine, getting qualified, and building the small-team leadership credibility that will make you a functional detachment commander at the captain level. You will spend meaningful time in formal training courses — language, survival, medical, shooting, cultural skills — and deploying in a support or observer role before you command a team independently. The pipeline consumes most of the o1-o2 window; you are building the foundation, not running the mission yet.

• 01Meet MARSOC A&S physical and mental standards — the selection is holistic, not a single event, and the cadre are evaluating judgment and team orientation as much as raw fitness across multi-day assessment lanes.
• 02Complete ITC training events to standard — land navigation, small arms proficiency, medical skills, combatives, language and cultural requirements, and mission planning products that a MSOT can execute.
• 03Plan and brief special operations missions using the joint special operations planning process per JP 3-05 — JTCAS, isolation, mission analysis, course-of-action development, and rehearsal to the MSOT standard.
• 04Operate as a member of a small, cross-functional team without a rank-based authority backstop — MSOT culture requires officers to earn credibility through competence, not grade.
• 05Maintain proficiency across individual weapons systems, communications equipment, and the medical tasks in the Special Operations Combat Medic-adjacent training lane that ITC front-loads.
• 06Write and deliver a thorough assessment of host-nation partner force capability, training readiness, and FID engagement plan to MARSOC Group staff standards under NAVMC 3500.44 special operations individual training standards.

• —MCDP 1 — Warfighting; MCDP 1-3 — Tactics (the conceptual foundation TBS and IOC build before A&S; MARSOC assumes you own it).
• —JP 3-05 — Special Operations (the joint doctrine governing MARSOC missions; read this before A&S — the MSOT planning process lives here).
• —NAVMC 3500.44 — Marine Special Operations Command T&R Manual (the individual and collective training standard that ITC trains you to and the MSOT evaluates you against).
• —MCRP 3-10A.4 — Marine Rifle Platoon (the 0302 baseline the 0370 officer is assumed to own before MARSOC accepts the package).
• —JP 3-22 — Foreign Internal Defense (one of the four special operations core activities a MSOT is organized around; required reading before the FID-focused ITC training blocks).
• —MCTP 3-10B — Marine Special Operations (MARSOC tactical doctrine; governs the MSOT organizational concept and the six-element team structure the DC will command).

• —IOC graduate (Infantry Officer Course, Quantico, roughly thirteen weeks) — a non-negotiable prerequisite before a 0302 officer can submit an A&S package; MARSOC does not waive it.
• —A&S completion at Camp Lejeune — the selection event that determines whether the Corps invests thirteen months of ITC training in you; not all IOC graduates who apply are selected.
• —ITC completion (Individual Training Course, Camp Lejeune, roughly thirteen months) — the training and qualification pipeline that produces the 0370 MOS designation; attrition continues through ITC for cause and medical reasons.
• —Physical fitness at the top tier of the officer cohort — A&S does not publish a specific score floor, but the ruck distances, load weights, and duration of multi-day assessment events require sustained aerobic and load-bearing capacity well above the PFT/CFT 1st-class baseline.
• —Language training qualification at the Defense Language Institute or ITC equivalent to the level MARSOC assigns based on the regional focus of the gaining MSOB (Marine Special Operations Battalion).

• —Treating A&S as a physical fitness test and under-investing in small-team judgment, communication, and land navigation — the cadre have seen plenty of fast runners who cannot orient a team at 0300 with a seven-digit grid and a decision to make.
• —Arriving at ITC with the expectation that your TBS class standing and IOC performance protect you — ITC evaluates a different set of skills and the 0370 community does not carry reputations from the conventional side forward.
• —Planning to a brief standard that satisfied your battalion S-3 but does not meet the joint special operations planning product that a MSOT actually needs to execute — your ITC instructors are operators who have run real missions and the gap shows in the mission analysis product.
• —Underestimating the cultural competence and language requirements as secondary to the shooting and fitness lanes — MARSOC's FID and UW mission sets require officers who can operate effectively with partner forces, and a DC who cannot communicate with the host-nation counterpart is a liability on the FID objective.
• —Neglecting the administrative and logistical management skills that the MSOT DC owns — the team's SOF-specific equipment, communications gear, and specialized weapons require careful property accountability, and a DC who treats supply and maintenance as below his paygrade loses the team's confidence inside a month.

The good 0370 lieutenant finishes ITC ranked in the top quarter of his cohort, arrives at the gaining MSOB with language training complete, demonstrates from day one that he learns from the team's senior NCOs rather than trying to outrun them, and by the end of his first pre-deployment training cycle the detachment sergeant is recommending him to the company commander for primary DC authority on the first real mission. He does not confuse rank with credibility in a special operations environment. The MSOT runs on the 7-person element's collective judgment, and the DC who earns that collective trust before deployment day is the officer MARSOC grows into a seasoned Group staff planner at the Capt/Maj tier.

You are the detachment commander. Fourteen Marines and sailors, a MSOT sergeant major who has been running special operations since you were in high school, and a set of authorities under SOCOM and MARSOC chain that make this the most consequential small-unit command in the Marine Corps. Own the mission planning. Protect the team.

As a captain you command a Marine Special Operations Team — a fourteen-person, six-element detachment organized to plan and execute direct action, special reconnaissance, foreign internal defense, and unconventional warfare across the combatant commander's area of operations. You operate under the Marine Special Operations Battalion, which sits under one of the three Marine Raider Regiments at Camp Lejeune and Camp Pendleton. As DC you own the mission planning cycle: you receive the warning order from the MSOB commander, conduct mission analysis with the team sergeant, build the isolation package, run the course-of-action brief, and present the plan to the MSOB S-3 and commander before you execute. You manage the team's equipment — SOF-specific weapons, communications gear, breaching assets, and the specialized vehicles assigned to the element — through a rigorous property accountability system that has no tolerance for lost serial numbers on a forward operating base. You write FitReps on the two officers and the senior NCO in your element's rated chain, brief the MSOB commander on team readiness, and manage the pre-deployment training cycle — language, cultural, regional familiarization, and partner-force relationship building — that MARSOC runs in the year before a deployment. You deploy to a theater that is genuinely austere: small bases, long distances from the nearest CASEVAC asset, and a chain of command that extends to the joint special operations task force and the combatant command's SOCOM component. As a major in the MARSOC structure you move off the team and onto the MSOB or MSOR (Marine Special Operations Regiment) staff — S-3 operations, Group fires officer, joint planning, or a joint SOCOM billet — where you apply the operational credibility the DC tour built into the planning products that commit the regiment's teams. The MARSOC major is also the officer the Brig. Gen. commanding Marine Forces Special Operations Command tasks for the hard planning problems the staff cannot solve with doctrine alone.

• 01Command a MSOT through the full JOPP (Joint Operations Planning Process) for a special operations task — warning order, mission analysis, course-of-action development and war-gaming, decision brief to the MSOB commander, isolation, rehearsal, and execution, documented in a format the Joint SOF task force can read and approve.
• 02Lead the FID engagement cycle with a host-nation partner force — assess the partner's capability and training needs, build the MSOT training program, conduct the training, and report the outcomes to the MSOB S-3 in a format the Theater Special Operations Command can read.
• 03Manage MSOT property accountability — SOF-specific equipment, non-standard weapons, specialized communications gear — at a forward operating base without a garrison support structure; the LOGPAC arrives when the mission allows, not when the property book is overdue.
• 04Write and defend the team's Tactical Mission Briefing to the MSOB commander and the JSOTF staff — a product the special operations community grades on mission analysis rigor, not on slide aesthetics.
• 05Build and maintain partner force relationships across a theater of operations — the MSOT DC's relationships with the host-nation counterpart unit are a command asset that survives rotation if the DC builds them correctly and hands them over in a documented relationship transfer product.
• 06As a major on the MSOB or MSOR staff, translate combatant command operational-level intent into executable MSOT missions — the fires/effects coordination and joint planning processes that MARSOC staff officers own at the Group level.

• —JP 3-05 — Special Operations (the authoritative joint doctrine for all MARSOC missions; the MSOT DC quotes chapter 3 on special operations activities to the JSOTF as often as he reads MCTP 3-10B).
• —MCTP 3-10B — Marine Special Operations (the MARSOC tactical doctrine governing MSOT organization, mission planning, and execution; read it before commanding a team).
• —JP 3-22 — Foreign Internal Defense (the joint doctrine governing the FID mission set; the MSOT DC is expected to understand the phases and the legal authorities that govern the train-advise-assist relationship with a foreign force).
• —FM 3-18 — Special Forces Operations (Army special operations doctrine; MARSOC cross-reads this because joint SOF task forces integrate Marine Raiders with Army SF and the planning process needs to be interoperable).
• —NAVMC 3500.44 — MARSOC T&R Manual (the individual and collective training standards the MSOT is evaluated against in pre-deployment certification; the DC owns the unit-level T&R tracking).
• —MCO 1610.7 — Performance Evaluation System (the FitRep mechanics the DC owns for his two officers and the team sergeant; the relative-value ranking inside MARSOC's small officer community is the input the Maj board reads most carefully).
• —JP 3-09 — Joint Fire Support (the DC who can call CAS, coordinate fires from a special operations fires element, and integrate joint enablers onto a target has a capability his team cannot get from anyone else).

• —MSOT DC tour — typically 18-24 months in command of a fourteen-person team, slated by the MSOB commander through MARSOC assignment processes; the command FitRep from the MSOB CO is the document the Maj board reads with the same intensity the conventional infantry community reads the rifle company command FitRep.
• —Pre-deployment certification (PDC) as MSOT DC — the MARSOC-run evaluation that certifies the team is ready to execute the COCOM's mission set; a team that does not certify does not deploy, and the DC brief to the certification evaluators is a command-level performance event.
• —Joint Professional Military Education (JPME) Phase 1 completion and EWS or Command and Staff College selection — the PME credentials MARSOC and the Maj board read as proof the institution is investing in the officer's long-term potential.
• —Language proficiency at the 2/2 level (DLPT) or higher in a regional language assigned by MARSOC — the DC without the language is dependent on interpreters in every partner-force engagement; the DC with the language builds relationships no interpreter can replicate.
• —Physical fitness at the Tier 1 SOF standard continuously — the team watches the DC in every selection event, every MSOT fitness assessment, and every austere-environment physical task; a DC who cannot lead from the front physically loses the team's confidence on the first deployment.

• —Submitting a Tactical Mission Briefing to the JSOTF that the MSOB S-3 has not scrubbed — the joint staff reads it, the SOCOM component sees it, and a mission analysis product with gaps in the threat assessment or uncoordinated fires is a DC-level failure that the MSOB commander notes in the FitRep.
• —Losing the team's accountability on a sensitive or non-standard item at a forward operating base — the SOF supply chain for specialized equipment is long, the replacement timelines are measured in months, and a missing serial number at the FWTS accountability inspection travels back to the MSOB commander and the command element.
• —Neglecting the partner-force relationship maintenance between deployments — the host-nation counterpart unit's trust in the MSOT is built over months of engagement and can be lost in a single missed communication or a perceived slight in front of the unit's soldiers; the incoming DC team inherits the relationship the outgoing DC either built or burned.
• —Coasting through the staff tour at the MSOB or MSOR after the DC billet. The MARSOC major on the Group staff whose operational planning products are mediocre is the officer who loses the JPME selection and arrives at the LtCol board without a competitive FitRep in the post-command window.
• —Running mission rehearsals to a brief standard rather than to execution standard — the MSOT rehearsal is the last opportunity to find the gap in the plan before the team is on the objective, and a DC who uses rehearsal time to finish the brief rather than to war-game the decisive points is the DC who calls for a CASEVAC because the contingency plan was never discussed.

The good MSOT DC runs a team whose PDC AAR has no significant findings and whose JSOTF counterpart requests by name for the follow-on deployment. His mission products are credible enough that the JSOTF J-3 approves them without a rework requirement. The team sergeant briefs the MSOB sergeant major that the DC leads from the front, plans honestly, and protects the team's time from the taskings that don't belong on the mission calendar. The good MARSOC major post-DC tour is the staff officer whose planning products the MSOR commander briefs to the COCOM without rewriting — and whose name the MARSOC commanding general already surfaced to the MMPB monitor before the Maj board convened. The community is small and the reputation built on the team follows the officer for the rest of the career. Build it right the first time.