Sgt. Julian Gomez III, a section chief with 3rd Battalion, 14th Marine Regiment, 4th Marine Division, gives the command to fire an M777A2 Lightweight Howitzer to Lance Cpl. James Whearry, a field artilleryman with 3rd Bn. 14th Marines, at Fort Indiantown Gap, Pa., during exercise Twisted Sister, a battalion fire exercise, Oct. 25, 2014. Field artillerymen receive various call-for-fire scenarios, some requiring them to fire a certain number of rounds in a given time, others require precision shooting involving each gun in the battery as well as other batteries combined. (Marine Corps Photo by Cpl. J. Gage Karwick/Released)