150710-N-VY489-083 ADRIATIC SEA (July 10, 2015) Fire Controlman 3rd Class Shane Stephens, from Phoenix, Ariz., prepares to operate a MK 38 MOD2 25 mm Autocannon System, during a Small Caliber Action Team (SCAT) exercise aboard the U.S. 6TH Fleet command and control ship USS Mount Whitney (LCC 20. (U.S. Navy Photo by Mass Communication Specialist 1st Class Mike Wright/ Released).