“Every Marine a Rifleman” is the mantra of the the Marine Corps. However, some Marines dedicate their entire careers to working as a Rifleman or to work in Infantry. Those Marine Corps Infantry jobs work to locate, close with and destroy the enemy in all environments and are the masters of small arms, demolitions, rockets and mortars. Infantry are the quintessential image of a Marine and are to the core of the USMC mission. The training USMC infantry MOS number is MOS 0300. With the exception of LAR units, most infantrymen are trained principally on foot. Marines Corps Infantrymen with MOS 03XX attend training at the School of Infantry (SOI) in the Infantry Training Battalion (ITB).
Click on the MOS you want to learn about from the table below.
- SOI West: School of Infantry West, located in Camp Pendleton, California.
- SOI East: School of Infantry East, located in Camp Lejeune, North Carolina.
- ITB – Infantry Training Battalion
Infantry MOS Positions
MOS 0311 – Rifleman – PMOS
Riflemen are the primary scouts, assault and close combat forces available to the Marine Air Ground Task Force. They are the foundation of the Marine Infantry Organizations and the nucleus of the fire team, the scout team and the Scout Snipers. Training occurs either at SOI East or SOI West.
– Riverine Assault Craft Marine – FMOS
A RAC Marine either acts as the coxswain for the Riverine Assault Craft or employs the onboard weapons system. They must have a minimum WS-I Water Survival qualification.
– Light Armored Vehicle Marine – PMOS
A Light Armored Vehicle Marine is an infantry Marine skilled in Armored Reconnaissance. They have basic infantry skills as well as being knowledgeable in armored reconnaissance and armored security missions to gain information on the enemy and terrain. They employ a variety of guns and thermal optics as well as being trained as vehicle operators and commanders. Marines must be either a MOS 0311, 0331, 0241, 0351, 0352 or complete ITB training. WS-B Water Survival qualifications, color vision, drivers license and meeting Initial Strength Test standards are all requirements as is being a height of between 65 and 75 inches. Training takes place at either SOI West or SOI East.
– Rigid Raiding Craft / Rigid Hull Inflatable Boat Coxswain – FMOS
RRC / RHIB Coxswain’s are responsible for the safety and conduct of this boat team and embarked Marines and the safe operation, launch, recovery, maintenance of the craft and its equipment. WS-I Water Survival qualifications is necessary as well as normal visual acuity. Training takes place at Camp Lejeune, NC.
– Combat Rubber Reconnaissance Craft Coxswain – NMOS
CRRC Coxswain is responsible for the safety and conduct of this boat team and embarked Marines and the safe operation, launch, recovery, maintenance of the CRRC craft and its equipment. Expeditionary Warfare Training Group Pacific in San Diego or Camp Lejeune in North Carolina are the training locations.
– Scout Sniper – NMOS
The Scout Sniper is a Marine skilled in field craft and marksmanship who delivers long range, precision fire on selected targets from concealed positions in support of combat operations and also gather information. They can also use reconnaissance and surveillance operations for the infantry battalion in support of the intelligence. First class PFT’s and CFT’s are requirements as is current qualification as an expert Rifleman. Perfect vision is also required. Training for Scout Sniper occurs at Quantico, VA, Camp Lejeune, NC, SOI West and Kaneohe Bay, HI.
– Reconnaissance Marine – PMOS
A Reconnaissance Marine is an Infantry Marine skilled in amphibious and ground reconnaissance. They must be proficient in scout swimming, small boat operations as well as as patrolling and trained in Static Line and Military Freefall Parachutists. First class PFT’s and CFT’s are necessary as well as medical qualification for jumps and dives. It is a volunteer MOS if its a lateral. Camp Pendleton, CA is the main training base.
– Reconnaissance Marine, Parachute Qualified – NMOS
A Reconnaissance Marine, Parachute Qualified participates in reconnaissance activities to gain information on the enemy and terrain. They employ parachute as a means of entry when appropriate. They must also hold a MOS 0321 and complete the Basic Airborne Course APFT.
– Reconnaissance Marine, Combatant Diver Qualified – NMOS
A Reconnaissance Marine Combatant participates in reconnaissance activities to gain information on the enemy and terrain. They employ combatant diving in the execution of missions when appropriate. They must hold a MOS 0321 and complete MCCDC approved Combatant Diver qualification course.
– Reconnaissance Marine, Parachute and Combatant Diver Qualified – NMOS
Reconnaissance Marine, Parachute and Combatant Diver Qualified Marines participate in reconnaissance activities to gain information on the enemy and terrain. They utilize either parachuting or combatant diving in the execution of reconnaissance missions. They must hold a MOS 0321 and complete Basic Airborne Training at Ft. Benning, GA.
– Machine Gunner – PMOS
The Machine Gunner provide direct fire in support of the Infantry Rifle squads/platoons/companies. They employ machine guns and their support vehicles and are located in weapons platoons and companies. Training occurs at SOI West or Camp Lejeune, NC.
– Mortarman – PMOS
Mortarmen are responsible for providing indirect fire in support of the rifle and LAR squads/platoons/companies and the infantry and LAR battalions. They employ a variety of Mortars and their training is at Camp Lejeune, NC and SOI West.
– Infantry Assault Marine – PMOS
An Infantry Assault Marine employs rockets, APOBS and demolitions. They provide rocket fire against fortified positions supporting the other divisions within the infantry battalion. Training occurs at Camp Pendleton, CA and Camp Lejeune, NC.
– Antitank Missile Gunner – PMOS
Antitank Missile Gunner provide medium and and heavy anti-armor fire in support of the infantry, LAR and tank battalions. They employ the tanks and as result, must possess psychological and physiological qualifications required for licensing as a Government Motor Vehicle Operator. Camp Lejeune, NC and SOI West are the locations of training.
– Light Armored Reconnaissance Unit Leader – PMOS
The LAR Unit Leader is the enlisted technical and tactical advisor to the LAR Platoon Commander. They assist the platoon commander with all aspects of the LAR platoons’s functions within a mission. They supervise and coordinate maintenance and recovery. They must possess MOS 0313 or all the requirements of a MOS 0313.
– Infantry Squad Leader – PMOS
Infantry Squad Leaders come from a lateral move from within the Infantry MOS through the Squad Leader Development Plan. Infantry Squad Leaders plans assigned missions and carries out the orders issued by the Platoon Commander as well as the welfare and discipline of his squad and its equipment and weapons and their deployment. It is a lateral move MOS from most of the Infantry PMOS and must be a volunteer in the grade of Corporal or Sergeant with 3 years of completed service.
– Light Armored Reconnaissance Master Gunner – NMOS
LAR Master Gunner is a special staff officer employed as a Principal advisor to their respective Commander. They assist in training and employment plans, designing and vetting gunnery and training policies as well as generating and reports, overseeing ammunition and mentoring. To be admitted, they must be a SSgt (E-6) and have the MOS 0313. Requirements include Master Gunner Courses at Ft Benning, GA or SOI West.
– Infantry Unit Leader – PMOS
Infantry Unit Leader is responsible to the commander and assist in the planning, training, deployment and employment of all infantry organic weapons systems and units power capabilities. They also supervise and coordinate the preparation and assignment of personnel and the establishment of unit command and control. They must have held one of the following MOS; 0311, 0331, 0341, 0351, 0352, or 0365 and attended Infantry Unit Leader Course at SOI West Camp Pendleton or Camp Lejeune, NC.
– Critical Skills Operator – PMOS
CSO’s are Marines trained to execute missions in the elite levels of Special Operations, Internet defense, Counter- terrorism and a plethora of other operations. They are decisive thinkers, team players and subject matter experts and operate as cross-cultural diplomats and global scouts. They must have optimal fitness levels and no negative reports in any regard of their past service. They must successfully complete Assessment & Selection, Individual Training Course and must request and be granted a lateral move to the 0372 MOS.
– Light Armored Reconnaissance Operations Chief – PMOS
LAR Ops Chief serve as the senior enlisted tactical advisor to the Commander and staff of a LAR company/ battalion. They advise on the employment of organic weapon systems as well as the care and condition of unit resources and equipment. They oversee training, collection of relevant information and coordinate the embarkation and debarkation of the unit. They must have received a MOS 0363 and require Top Secret Eligible Security Clearance. Successful completion of GCE Operations Specialist Course and Operations and Tactics Instructor Chief Course are required.