MOS 0331

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MOS 0331 is the USMC infantry specialty for crew-served machine guns. A machine gun team can utilize a medium machine gun (240G), a heavy machine gun (M2), or an automatic grenade laucher (MK-19). A machine gun crew is trained in the maintenance, first echelon repair, and deployment of these guns. When assigned to a unit (either a rifle company or a weapons company), the machine gunner team will deploy either the light machine gun or the heavy machine gun.

Contents

[edit] Teams

A machine gun is only as effective as its crew, and the teamwork of the crew will determine its utility.

Machine gunners have to memorize the acronym PICCMDEP, which stands for the Eight Principles of Machine Gun Employment:

  • P - Pairs
Always deploy in pairs. Not only in combat, but in all aspects of military accountability.
When deploying your weapon, always interlock your fields of fire with respect to your teammate (since you have deployed in pairs, you have a teammate).
  • C - Coordinated fires
Always coordinate your fire with your teammate, so as to conserve ammo and to increase confusion upon the enemy.
  • M - Mutual support
Support your teammate by picking up your rate of fire if they are out of ammo or have a malfunction of their weapon.
Fire in defilate (from below the horizon) so as to cover your position and protect your identity.
Use enfilade fire to maximize damage of your fires. Enfilade fire is when your rounds (which fall in an oval with the long axis parallel to your direction towards the enemy) fall within the long axis of the enemy (since machine gunning is not designed to engage single individuals, this relates to the long axis of the group of combatants or the vehicle or building).
  • E - Economy of fires
Conserve your ammunition and use only the appropriate amount of ammunition for the target, taking into account what ammunition you have and the particulars of your situation.

[edit] Machine gun fire

[edit] Characteristics

[edit] Classifications

[edit] Fighting positions

[edit] Ground

T-Shape Fighting position L-Shape Fighting position

[edit] Vehicle

[edit] Range cards

[edit] ADDRAC

When Giving Commands. Alert- Direction -Description -Range -Assignment- Control.

[edit] External links