EAST CHINA SEA (Nov. 30, 2020) Operations Specialist 1st Class Marshawn Walton, left, from Chicago, and Cryptologic Technician (Technical) 2nd Class Jonathan Montanez, from Virginia Beach, Va., fire M9 service pistols during a small arms gun shoot on the flight deck aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56). McCain is assigned to Destroyer Squadron (DESRON) 15, the Navy�s largest forward-deployed DESRON and the U.S. 7th Fleet�s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Markus Castaneda)