Fire Team Zulu was a UNSC Marine unit stationed aboard UNSC Pillar of Autumn that actively participated in the Battle of Installation 04. Fire Team Zulu had at least one Corporal and one Sergeant. The squad was approximately six Marines strong and later encountered the survivors of another five-man squad. They were first encountered by John-117 near the beginning of the Halo: Combat Evolved mission Assault on the Control Room.