Keywords: US Navy 100925-N-6632S-286 Rear Adm. Nora Tyson, commander of Carrier Strike Group (CSG) 2, fires a .50-caliber machine gun.jpg en ATLANTIC OCEAN Sept 25 2010 Chief Gunner's Mate Barry J Cramer assigned to the weapons department of the aircraft carrier USS George H W Bush CVN 77 observes Rear Adm Nora Tyson commander of Carrier Strike Group CSG 2 fire a 50-caliber machine gun during a live-fire exercise U S Navy photo by Mass Communication Specialist Seaman Kevin J Steinberg/Released 2010-09-25 100925-N-6632S-286 Navy http //www navy mil/view_image asp id 92152 U S Navy photo by Mass Communication Specialist Seaman Kevin J Steinberg PD-USGov-Military-Navy Aboard USS George H W Bush CVN-77 Gunner's Mate Browning M2 of the US Navy Cartridge ejection Nora Tyson |