U.S. Marine Corps Sgt. Chance Walsch (left) and Lance Cpl. Russell Stine exit a building with their M-4 carbine rifles at Schofield Barracks, Hawaii, on Sept. 16, 2009. Walsch is assigned to Bravo Company, 1st Battalion, 3rd Marine Regiment and Stine is assigned to Alpha Company, 1st Battalion, 9th Marine Regiment. Both Marines are students participating in an infantry squad leader's course conducted by Advanced Infantry Training Battalion, School of Infantry - West, Detachment Hawaii.