A professional who deploys, positions, fires, and maintains crew-served weapons, such as recoilless rifle, tank destroying missile system, or light machine guns, during training or combat mission. Respnsibilities include:

• Disassembles, cleans, and loads weapons and equipment for movement and use in combat.
• Designates location of gun, sector of fire, and targets.
• Computes firing data, aims, and fires weapons at fixed and moving targets, employing direct fire techniques.
• Assists superior in leading and directing personnel in combat missions, and during maneuvers or tactical problems.
• Fires weapons at enemy forces to support and assist other infantry units.
• Assists superior in coordinating fire and movement with that of other friendly units.
• Constructs and camouflages weapon positions and ground obstacles.
• Emplaces and arms, or disarms and removes mines used for local security.
• Protects weapons and equipment against attack from chemical warfare agents.
• Decontaminates weapons and equipment when exposed to chemical attack.
• Performs preventive maintenance, routine tests, and authorized minor repairs to weapons and equipment.