SOUTH CHINA SEA (Oct. 7, 2020) Fire Controlman 2nd Class Samuel Thomas, from Carol Stream, Ill., engages an M2HB .50-caliber machine gun on the foc’s’le during a small craft attack team (SCAT) drill aboard the Arleigh Burke-class guided-missile destroyer USS John S. McCain (DDG 56). John S. McCain is assigned to Destroyer Squadron (DESRON) 15, the Navy’s largest forward-deployed destroyer squadron and the U.S. 7th Fleet’s principal surface force. (U.S. Navy photo by Mass Communication Specialist 2nd Class Markus Castaneda)