U.S. Army Reserve Sgt. 1st Class Christopher Trammell, 979th Mobility Augmentation Company, 478th Engineer Battalion, 926th Engineer Brigade, 412th Theater Engineer Command, based in Lexington, Ky., left, explains to Spc. Dalton Phillips, the correct way to engage targets with his M2 .50 caliber machine gun before Phillips and his crew in a M113 Armored Personnel Carrier (APC) engage targets during a Gunnery crew live-fire qualification at Wilcox Range on Fort Knox, Ky., March 28, 2017. Trammell was the range officer in charge. This is the first time that this company has fired its M2s and M240B Machine Guns from APCs. This training ensures that Army Reserve units and Soldiers bring combat-ready and lethal firepower to worldwide operations. (U.S. Army Reserve Photo by Sgt. 1st Class Clinton Wood)