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380px-USMC-E5.svg[1]Sgt (USA)


UNSC Marine Corps and UNSC Army

Higher rank

Staff Sergeant

Lower rank



A squad of about 12 (Marines)
A team of about four (Army)

Known Sergeants

Sergeant is the fifth enlisted rank (E-5) of the UNSC Marine Corps and the UNSC Army, and is a non-commissioned officer. It is equal to the rank of Petty Officer Second Class in the UNSC Navy and Staff Sergeant in the Air Force. Sergeants in the Army may lead fireteams of around 4 soldiers, while Marine Sgts. typically lead squads of about 12 Marines.

While Sergeant is a rank of its own, the title "Sergeant" is often used to refer to any of the enlisted ranks of the UNSC Marine Corps or Army which carry the title Sergeant:


  1. Halo 3: ODST Screenshot of the Rookie - Upper left chest plate has clear sign of one chevron and two crossed rifles of a United States Marine Corps Lance Corporal. It is assumed that the UNSC uses the same insignia for its Marines.

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