What is the primary purpose of a machine gunner in a Marine Infantry unit?

The primary purpose of a machine gunner in a Marine Infantry unit is to provide suppressive fire and support fire for maneuvering units. This role is vital to the success of infantry operations, as machine gunners create a base of fire that allows other units to maneuver effectively on the battlefield. Their ability to deliver sustained and accurate fire against enemy forces helps to suppress enemy positions, reduce their effectiveness, and provide cover for friendly troops as they advance or reposition.

Suppressive fire is crucial in minimizing the enemy's ability to return fire or maneuver, which allows allied forces to operate with reduced risk. The machine gunner's effectiveness in this role enhances the overall combat power and flexibility of the infantry unit, enabling them to adapt to various tactical situations.