Senior chief petty officer
From Halopedia, the Halo wiki
Template:Rank Infobox Senior Chief Petty Officer is the eighth enlisted rank of the UNSC Navy, and is a non-commissioned officer. It is equal in rank to Master Sergeant and First Sergeant in the UNSC Marine Corps.
In informal settings, Senior Chief Petty Officers are typically called "Chief".
Template:Navy Enlisted Ranks
