Primary Responsibilities
Conduct ground and amphibious reconnaissance, surveillance, reporting, and small-team patrolling.
03xx Infantry / Marine Corps MOS Profile
0321 Reconnaissance Marine
Reconnaissance Marines conduct amphibious and ground reconnaissance, surveillance, reporting, raids support, limited direct action, and specialized insertion/extraction tasks.
Code / Pipeline0321
MOS NameReconnaissance Marine
Category03xx Infantry
Unit Association2nd Reconnaissance Battalion / Force Recon
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Marine Corps MOS Profile
Responsibilities and Pipeline
Training Pipeline
Complete recruit training and entry-level infantry training.
Billet Progression
This MOS sits inside the Marine ground-combat lane and depends on field discipline, small-unit leadership, communications, weapons proficiency, and repeated field evaluation.
Current Member Tracking
The Current Members section below is populated from command-record MOS data. When a chain of command changes MOS, this page is regenerated to keep the roster link accurate.
USMC Responsibilities
0321 Reconnaissance Marine is described here by practical Marine Corps duties, billet expectations, and training progression. This section avoids game-language so the page reads like a professional MOS reference.
- Conduct ground and amphibious reconnaissance, surveillance, reporting, and small-team patrolling.
- Operate communications, optics, navigation, insertion equipment, and field sustainment equipment under reconnaissance team procedures.
- Support mission planning, observation post operations, beach/littoral reconnaissance, route reconnaissance, and team security.
- Develop advanced skills in combatant diving, parachuting, small boats, communications, and reconnaissance reporting as assigned.
Training Pipeline
The pathway is shown at a broad public level. Exact prerequisites, screening, quotas, course names, and assignments can change by fiscal year, manpower requirement, medical qualification, command screening, and schoolhouse policy.
- Complete recruit training and entry-level infantry training.
- Complete screening and Basic Reconnaissance Course / reconnaissance training pipeline as assigned by current service policy.
- Join a reconnaissance unit and complete team-level sustainment, amphibious, communications, and field training.
- Advance through team member, assistant team leader, team leader, platoon sergeant/chief, instructor, or operations billets.
Billets And Skill Growth
- Entry-level Marines focus on core tasks, equipment, field discipline, and reliable execution.
- NCOs supervise small teams, enforce standards, plan rehearsals, and train junior Marines.
- SNCOs and officers manage readiness, risk, training plans, inspections, reporting, and integration with adjacent staff sections.
- Instructor and staff billets preserve standards, document lessons learned, and build repeatable training for the next rotation.
Chain of Command Matching Logic
Chain of command records can list a current MOS, prior record MOS, ADMOS, or specialty track. This page shows a member as a Current MOS when the MOS is the member’s active specialty and as Recorded Profile MOS / ADMOS when it appears in the member history.
Rank / Grade Requirements
Grade LaneEnlisted MOS
Entry / Award Basis
Reconnaissance Marine MOS after successful screening, infantry foundation, and reconnaissance training pipeline.
Typical Rank Use
Normally LCpl/Cpl through GySgt for team and platoon billets; SNCOs fill platoon sergeant/chief, operations, instructor, and staff roles.
Schoolhouse & Qualification Requirements
SchoolhouseReconnaissance Training Company, School of Infantry-West, plus airborne, dive, and survival schools as billet requires
Reconnaissance training emphasizes individual reconnaissance skills, amphibious skills, team communications, patrolling, reporting, navigation, and reconnaissance-team employment.
Entry QualificationsScreening / Prerequisites
Screening normally centers on physical fitness, water confidence, swim qualification, medical qualification, field performance, security eligibility, and command recommendation.
Associated SchoolsFollow-On Training
- Basic Reconnaissance Course / current reconnaissance training pipeline
- Basic Airborne Course
- Military Free-Fall Parachutist Course when assigned
- Marine Combatant Diver Course / dive supervisor path when assigned
- SERE Level C when required by billet or deployment profile
- Advanced communications, small boat, breacher, scout sniper, JTAC, and instructor courses by billet
Course titles, quotas, prerequisites, and sequence can change by fiscal year, manpower requirement, medical qualification, and current schoolhouse policy.
Current Members in this MOS
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MOS Association
2nd Reconnaissance Battalion / Force Recon
This page links the occupation lane to 2nd Reconnaissance Battalion / Force Recon. Matching chain of command members appear in the Current Members section above.