Here's the ranks if you're asking or wondering whats next.

TRAINEE PRIVATE PRIVATE 1ST CLASS PRIVATE 2ND CLASS GUNNERY SPECIALIST ____________________ JUNIOR COMMAND: WARRANT OFFICER CORPORAL LANCE CORPORAL SERGEANT STAFF SERGEANT ____________________ SENIOR COMMAND: MASTER WARRANT OFFICER CHIEF MASTER SERGEANT PETTY OFFICER 1ST CLASS PETTY OFFICER 2ND CLASS PETTY OFFICER 3RD CLASS SENIOR CHIEF PETTY OFFICER ____________________ HIGH COMMAND: DEPUTY CHIEF OF STAFF TROOPER FORCES 2IC COMMANDER IN CHIEF CHIEF OF DEFENSE STAFF