From Halopedia, the Halo wiki
Russel Tinnier (service number 10032-00154-RT) is a former enlisted man of the UNSC Marine Corps who served during the Human-Covenant War. Assigned to the 77th Marine Regiment, he fought during the Battle of Mombasa in Fall 2552. During the battle, his platoon was surrounded by Jiralhanae forces, who slaughtered it with plasma grenades. Tinnier was the only one able to escape, later remarking how he saw many brave soldiers die.
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