O'Brien (Marine)

Private O'Brien was a UNSC Marine aboard Reach Station Gamma, Dock 9, during the Fall of Reach.
==Biography==
===Battle of Reach===
O'Brien, along with Staff Sergeant Avery Johnson, PFC Wallace Jenkins, and Private Bisenti, were fighting a group of Kig-Yar when MCPO John-117 and PO2 Linda-058 boarded the station to destroy the navigational database of the ONI ship, .
===Battle of Installation 04===
He was picked up with Johnson and the Chief when they took a pelican and flew back to the Pillar of Autumn. When the Pillar of Autumn was boarded, John-117 recognized him (but could not remember his name) and saved him from a Kig-yar soldier. He was killed either when the Covenant boarded the Pillar of Autumn or during the Battle of Installation 04.
==Appearances==
*Halo: Combat Evolved 
**Halo: Combat Evolved Anniversary
*Halo: The Fall of Reach
*Halo: The Flood
Category:UNSC Marine Corps Personnel