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Chief Petty Officer

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Chief Petty Officer is the seventh enlisted rank of the UNSC Navy and is a non-commissioned officer. It is equal in rank to Gunnery Sergeant in the UNSC Marine Corps, Sergeant First Class in the UNSC Army, and Master Sergeant in the UNSC Air Force. It is directly above Petty Officer First Class and below Senior Chief Petty Officer.

In informal settings, Chief Petty Officers are typically called "Chief."

In the UNSC Navy, enlisted personnel are referred to by their rating and rate (rank). Mentioned ratings at the same pay grade as Chief Petty Officer are listed below:


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

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