5th Platoon
From Halopedia, the Halo wiki
The 5th Platoon was a United Nations Space Command Marine "Ship platoon" unit stationed aboard the UNSC Pillar Of Autumn.[1] The platoon was sent to secure the airlocks of Deck 11 of the Pillar of Autumn during the Covenant boarding action. It is unknown if the player encountered or interacted with them in any way during game play.
