U.S. Marine Corps Gunnery Sgt. Damian Vaughn, company gunnery sergeant for Alpha Company, Headquarters and Support Battalion, (HQSPTBN) Marine Corps Installations East, participates in the Commander's Cup Challenge softball game aboard Camp Lejeune, N.C., Sep. 26, 2013. HQSPTBN competes in monthly sports challenges in order to build unit cohesion within the battalion. (U.S. Marine Corps photo by Lance Cpl. Andre Dakis, Combat Camera, MCB Camp Lejeune/Released)