Sergeant Darnell Johnson, an artillery training school instructor with 10th Marine Regiment, 2nd Marine Division, grades soldiers with Charlie Battery, 3rd Battalion of the 319th Field Artillery Regiment, 1st Brigade, 82nd Airborne Division on their emplacement of the M-119 lightweight 105mm howitzer as part of a Top Gun competition held at Fort Bragg, N.C., May 7, 2014. The soldiers integrated into training with Marines from 10th Marine Regiment, in order to showcase their abilities on the weapons systems and to compare differences in execution of emplacement and communications.