Light machine-guns - Core Infantry - United Task Force (UNITAF) Arma 3

P3-55 Light machine-guns

UNITAF / Arma 3 / Core Infantry Procedures

Version 2 / 3min read / Updated Sat 04 Feb 2023 / 1708 views / of verified

Automatic Rifleman (AR)

The Automatic Rifleman is the fireteam's heavy firepower. They carry an M249 Light Machine Gun by default, giving them the ability to throw hundreds of rounds downrange in short order.

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M249 light machine gun


The AR is responsible for employing their weapon in a manner that maximizes the killing and suppressive power of it, allowing their teammates to maneuver with the support of their fire.


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Automatic Rifleman with a M249 light machine gun


Role Responsibilities

  • Control their fire.
    Short bursts tend to be the best way to employ a machinegun. The general guideline is to fire in six to eight round bursts, pausing between bursts to observe the effects of your fire, assess, and then reengage as necessary. With that being said, bear in mind that as contacts appear closer to the team, longer bursts can be used due to the greater chances of hitting closer targets.
  • Stay aware of their ammunition state.
    This takes two forms: One, know how many rounds are left in your current belt or box - make sure not to get caught with only a few left when contact is made - and two, stay aware of your overall ammo count. You must ensure that you're carrying as much ammo as feasible, and as you free up space for more ammo, your assistant should be ready to pass you fresh belts or boxes.
  • Take initiative on contact & achieve fire superiority. 
    Upon receiving enemy fire, each AR knows that it is their responsibility to return as heavy of a volume of fire as possible, with the intent of achieving fire superiority over the attacking forces. The amount of return fire given by each AR is a decisive factor in the ability of his fireteam members to maneuver to advantageous positions, or towards cover or concealment as required.
  • Are comfortable with being employed in the base of fire element.
    ARs must be familiar with the concept of acting as part of a 'base of fire' element. This includes being proficient at long-range fire, knowing how to shift fire to account for friendly forces reaching and moving through the objective area, and how to fire controlled, sustained, and effective suppression.
  • Maintain appropriate positioning.
    When the Fireteam Leader does not explicitly dictate otherwise, it's up to the Automatic Rifleman to maintain a position in the formation appropriate to the terrain, enemy, et cetera. He must constantly be aware of possible firing positions from which he can best employ his AR, and be able to move to them and begin engaging the enemy at a moment's notice.

This SOP has been contributed to by 1 editors:
Major James

UNITAF Standard Operating procedures (SOP)
are adapted primarly from US Army Training and Doctrine Command (TRADOC). Our written and audio procedures are a combination of the following primary source materials, as well as our own learnings, modifications and adaptations:
- US Army Techniques Publication, Infantry Platoon and Squad (ATP 3-21.8)
- Soldier’s Manual of Common Tasks Warrior Leader Skills Level 2, 3, and 4 (STP 21-24-SMCT)
- The Warrior Ethos and Soldier Combat Skills (FM 3-21.75 / FM 21-75)
- Leadership Development (FM 6-22)
- Dyslexi's Tactics, Techniques, & Procedures for Arma 3 (TTP3)

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