Door Gunner An Army crew chief fires a M240B machine gun from the window hatch of a CH-47 Chinook helicopter during an aerial gunnery training exercise at Marine Corps Outlying Field Atlantic, N.C., Feb. 8, 2017. The soldier is assigned to the 3rd General Support Aviation Battalion, 82nd Combat Aviation Brigade. Army photo by Army Sgt. Steven Galimore SHARE: Download: Full Size (1.78 MB) Tags: Soldiers, Army, training Credit: Sgt. Steven Galimore VIRIN: 170208-A-TD846-3112A.JPG Photo Gallery