Corporal Ryan Harney, a team leader with 2nd Combat Engineer Battalion, 2nd Marine Division, and St. Charles, Mo. native, fires at an oppositional force member in the offense during Military Operations in Urban Terrain, or MOUT, training aboard Camp Lejeune, North Carolina, April 8, 2015. The training included Marines going out in squad-sized elements to attack an objective being held by Marines in the defensive position after the squad leaders built terrain models and informed their Marines on avenues of approach and objectives. (U.S. Marine Corps photo by Cpl. Krista James/Released) - Corporal Ryan Harney, a team leader with 2nd Combat Engineer Battalion, 2nd Marine Division, and St. Charles, Mo. native, fires at an oppositional force member in the offense during Military Operations in Urban Terrain, or MOUT, training aboard Camp Lejeune, North Carolina, April 8, 2015. The training included Marines going out in squad-sized elements to attack an objective being held by Marines in the defensive position after the squad leaders built terrain models and informed their Marines on avenues of approach and objectives. (U.S. Marine Corps photo by Cpl. Krista James/Released)