Sergeant (UNSC)

Sergeant is the fifth enlisted rank of the UNSC Marine Corps and in the UNSC Army, and is a non-commissioned officer. It is equal to the rank of Petty Officer Second Class in the UNSC Navy.

For the Army, this rank and the subsequent Sergeant ranks are often referred to as simply "Sergeant". The subsequent Sergeant ranks for the Marine Corps are always referred to by their full rank.