03 - Infantry

In addition to the Infantry Officer, Marine Gunner and Infantry Unit Leader, the 03 occupational field is comprised of the following specialties: Rifleman, Light Armor Vehicle Marine, Sniper, Reconnaissance Marine, Machine Gunner, Mortarman, and Antitank Missile Gunner.

 

Regardless of specialty, Infantry Marines are primarily employed in units from the team to regimental level to locate, close with and destroy the enemy in all environments and weather conditions, day and night.

 

Excluding LAR Units, Infantry Marines are principally trained to operate light and fast on foot. Infantry units are capable of multiple methods of entry and insertion, embarking aboard and fighting from helicopters, assault amphibious vehicles, motorized tactical vehicles, ultra-light tactical vehicles and small boats.

 

As a principal component of a Marine Air-Ground Task Force's Ground Combat Element, Infantry Marines must be able to operate effectively in austere, distributed environments characterized by friction, uncertainty, and chaos. In every operating environment, all Infantry Marines must be physically dominant and masters of small arms marksmanship, tactical combat casualty care, and battle drills.

 

Infantry units must be comprised of Marines proficient in the employment of demolitions, rockets, machine guns, mortars, missile systems, and capable of directing supporting arms.

 

As dictated by the operating environment, Infantry units must be comprised of Marines proficient in field craft and capable of employing unmanned systems, limited information warfare, and non-lethal systems.

Officer MOS List

0301

Basic Infantry Officer

2ndLt - Capt

Basic MOS

0302

Infantry Officer

2ndLt - LtCol

Primary MOS

0303

Light-Armored Reconnaissance (LAR) Officer

2ndLt - LtCol

Primary MOS

0306

Infantry Weapons Officer

CWO2 - CWO5

Primary MOS

0307

Expeditionary Ground Reconnaissance (ESG) Officer

2ndLt - LtCol

Secondary MOS

0370

Special Operations Officer

Capt - LtCol

Primary MOS

Enlisted MOS List

Basic Infantry Marine

0300

Pvt - Sgt

Basic MOS

Rifleman

0311

Pvt - Sgt

Primary MOS

Light Armored Reconnaissance Marine

0313

Pvt - Sgt

Primary MOS

Combat Rubber Reconnaissance Craft Coxswain

0316

PFC - SSgt

Secondary MOS

Scout Sniper

0317

LCpl - GySgt

Secondary MOS

Reconnaissance Marine

0321

Pvt - MGySgt

Primary MOS

Reconnaissance Marine, Parachute Qualified

0323

Pvt - MGySgt

Secondary MOS

Reconnaissance Marine, Combatant Diver Qualified

0324

Pvt - MGySgt

Secondary MOS

Reconnaissance Marine, Parachute and Combatant Diver Qualified

0326

Pvt - MGySgt

Secondary MOS

Machine Gunner

0331

Pvt - Sgt

Primary MOS

Mortarman

0341

Pvt - Sgt

Primary MOS

Infantry Assault Marine

0351

Pvt - Sgt

Primary MOS

Antitank Missile Gunner

0352

Pvt - Sgt

Primary MOS

Light Armored Reconnaissance (LAR) Unit Leader

0363

SSgt - GySgt

Primary MOS

Infantry Squad Leader

0365

Cpl - Sgt

Primary MOS

Light Armored Reconnaissance Master Gunner

0367

Sgt - MGySgt

Primary MOS

Infantry Unit Leader

0369

SSgt - GySgt

Primary MOS

Critical Skills Operator

0372

Sgt - MGySgt

Primary MOS

Light Armored Reconnaissance Operations Chief

0393

MSgt - MGySgt

Primary MOS

Operations Chief

0399

MSgt - MGySgt

Primary MOS

© Copyright Before the Corps, 2020
  • Facebook
  • Twitter
  • Instagram

We are not Certified Financial Advisors. Any Retirement Planning or investment advice provided should be brought to a licensed professional.

Before the Corps is a privately owned and operated website. We are not endorsed by or affiliated with the Department of Defense or United States Marine Corps.

Neither the United States Marine Corps nor any other component of the Department of Defense has approved, endorsed, or authorized this service, or activity.