U.S. Navy Enlisted Roles
Command Master Chief (CMC)
A command master chief petty officer is the most senior enlisted sailor in a United States Navy unit they are the primary liaison between commissioned officers and enlisted sailors.
Operations Specialists (OS)
Operations Specialists aboard U.S. Navy combat vessels work in the Combat Information Center (CIC) aka: “Combat”, the tactical "nerve center" of the ship. Using a wide variety of assets available to them, they are responsible for the organized collection, processing, display, competent evaluation and rapid dissemination of pertinent tactical combat information to command and control stations, upon which sound tactical decisions may be made.
Quarter Master (QM)
A quartermaster is an enlisted member in charge of the maintenance, correction, and preparation of nautical charts and navigation publications. They are also responsible for navigational instruments and clocks and the training of ship's lookouts and helmsmen. They are trusted assistants of the navigator, bridge watch officers, and the captain.
this list is not complete
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