As seen through a night-vision device, Marine Corps Lance Cpl. Erain Abreu, left, aims a 240B light machine gun while Pfc. Zakary Mitchell looks on during a weapons familiarization exercise in the hangar bay of the amphibious assault ship USS Wasp in the Atlantic Ocean, Feb. 4, 2012. Abreu and Mitchell are assigned to the 2nd Marine Expeditionary Brigade. The Wasp is participating in Exercise Bold Alligator 2012.