U.S. Army Sgt. 1st Class, Jermaine Bruce (center), the platoon sergeant for 1st Platoon, 102nd Sapper Company, 307th Engineer Battalion (Combat Airborne), 20th Engineer Brigade, out of Fort Bragg, N.C., briefs his platoon on the importance of rehearsing for combat missions at Forward Operating Base Shank, Oct. 12, 2012. Combat rehearsals are crucial to mission success, because they ensure soldiers are aware of what to do in the event of a medevac.