150618-N-NT747-052 PHILIPPINE SEA - Gunner's Mate 1st Class John Linke, left, instructs Information Systems Technician 3rd Class Nakenneth Brown how to fire a .50-caliber machine gun during a live fire exercise on the main deck of the U.S. 7th Fleet flagship USS Blue Ridge. Blue Ridge departed for a patrol within the 7th Fleet area of operations after completing a brief maintenance period.