U.S. Marine Corps Cpl. Andrew J. Fitzgerald provides aerial security with a GAU-21 .50-caliber machine gun inside a CH-53E Super Stallion helicopter over Helmand province, Afghanistan, Aug. 22, 2013. Fitzgerald, a crew chief, is assigned to Marine Heavy Helicopter Squadron 462. U.S. Marine Corps Cpl. Andrew J. Fitzgerald provides aerial security with a GAU-21 .50-caliber machine gun inside a CH-53E Super Stallion helicopter over Helmand province, Afghanistan, Aug. 22, 2013. Fitzgerald, a crew chief, is assigned to Marine Heavy Helicopter Squadron 462. SHARE: Download: Full Size (2.95 MB) Tags: Photo Essays Credit: VIRIN: 992893-E-FLV12-970.jpg Photo Gallery