Aerial Scanning Marine Corps Cpl. Ross Roby scans for targets while conducting an offensive air support exercise during a weapons and tactics instructor course at Chocolate Mountain Aerial Gunnery Range, Calif., Sept. 30, 2019. SHARE: Download: Full Size (7.02 MB) Tags: marine corps Credit: Marine Corps Cpl. Lauren Brune VIRIN: 190930-M-LP762-0246.JPG Photo Gallery