Halo Nation

Command Master Chief Petty Officer

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N.B.: This rank has not yet been mentioned in the Halo Universe.

Command Master Chief Petty Officer is an E-9 rank of the UNSC Navy and is a non-commissioned officer. It is equal in rank to Sergeant Major in the UNSC Marine Corps, Command Sergeant Major in the UNSC Army, or Command Chief Master Sergeant in the UNSC Air Force. It is directly above Master Chief Petty Officer and below to Fleet/Force Master Chief Petty Officer. A CMC is a non-commissioned officer of a command or fleet, though subordinate to a Fleet/Force Master Chief. He/she is above all other enlisted personnel, including regular Master Chiefs, and is the connection between them and the unit or fleet's commander.


  1. This is the insignia for a UNSC Command Master Chief Petty Officer. However, in Halo 3 the insignia for Master Chief Petty Officer of the Navy is shown to be the same as for the US (with the standard "crow" changed for that of the UNSC "crow"). It is inferred that this applies to all UNSC Navy Enlisted rank insignias.

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