A professional who supervises and coordinates activities of workers engaged in operation and maintenance of tanks or amphibian tractors and equipment in combat or training. Respnsibilities include:

• Instructs personnel in operation of tanks or amphibian tractors and equipment.
• Inspects equipment to determine need for servicing or repair and directs workers in servicing or repairing vehicles and equipment.
• Directs loading of personnel and supplies on vehicle.
• Directs vehicle driver in movement of vehicle in combat situation on land or water.
• Prepares vehicle journals and worksheets concerning tactical situation.