Private first class
From Halopedia, the Halo wiki
Private First Class is the second enlisted rank in the UNSC Marine Corps, and is equal in rank to Crewman Apprentice in the UNSC Navy.
From Halopedia, the Halo wiki
Private First Class is the second enlisted rank in the UNSC Marine Corps, and is equal in rank to Crewman Apprentice in the UNSC Navy.