2nd Lt. Neil Doogan, Charlie Co. student, watches for an enemy during a field exercise at the Military Operations on Urban Terrain Town at Marine Corps Base Quantico on Sept. 25, 2013. The Basic School company spent a week practicing urban combat. (U.S. Marine Corps photo by Lance Cpl. Samuel Ellis/ Released) - 2nd Lt. Neil Doogan, Charlie Co. student, watches for an enemy during a field exercise at the Military Operations on Urban Terrain Town at Marine Corps Base Quantico on Sept. 25, 2013. The Basic School company spent a week practicing urban combat. (U.S. Marine Corps photo by Lance Cpl. Samuel Ellis/ Released)