From Halopedia, the Halo wiki
On July 24, 2552 his unit, 3 Charlie, was one of the first humans to engage Covenant forces on Reach, at Visegrad. Early in the battle he activated a distress beacon, which was soon responded to by Spartans NOBLE Team. He was outnumbered and some of his comrades had been wounded and killed, and stated that he could not hold his position. Upon NOBLE Team's arrival, he was able to defend the area from Covenant attack, after which he and his men were evacuated via a UH-144 Falcon.
He was voiced by Ron Livingston in a cameo appearance.
List of appearances