GREAT LAKES, Ill. (Feb. 1, 2023) Seaman Apprentice Bridgette N. Burnette, middle, reads technical instructions as Seaman Recruit Shannon M. Grayesters, left, and Mija R. King, all Surface Combat Systems Training Command Great Lakes students, assemble an M4 carbines at Gunner's Mate (GM) "A" School. GM “A” School gives accession Sailors technical training in weapons maintenance electricity, electronics and operation of launch systems and torpedoes. (U.S. Navy photo by Mass Communication Specialist 2nd Class Cory Asato)