Lance Cpl. Samuel T. Mahaffey, a motor vehicle operator with 8th Engineer Support Battalion, fires a practice M2 .50-caliber machine gun during a convoy operations training simulation at Camp Lejeune, N.C., Feb. 9, 2016. During the simulation, Marines drove through a desert environment, while challenged by an opposing force along the way. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released) - Lance Cpl. Samuel T. Mahaffey, a motor vehicle operator with 8th Engineer Support Battalion, fires a practice M2 .50-caliber machine gun during a convoy operations training simulation at Camp Lejeune, N.C., Feb. 9, 2016. During the simulation, Marines drove through a desert environment, while challenged by an opposing force along the way. (U.S. Marine Corps photo by Cpl. Paul S. Martinez/Released)