Dominique

Summary
Lieutenant Dominique was a junior officer who served under Captain Keyes when he assumed command of the UNSC Destroyer Iroquois. He had been one of Keyes' students, transferring to Luna OCS Academy from the Universite del' Astrophysique in Paris after his sister was killed in action. He was short, nimble athletic, and rarely cracked a smile. He was always business. Keyes appreciated that, and was decidably less impressed with the rest of the officers. He served as Communications officer for the Iroqious through the battle of Sigma Octanus IV and later was transferred to the UNSC Pillar of Autumn along with Captian Keyes.

Aboard the Pillar of Autumn, Lieutenant Dominique was among the officers who were marooned on Installation 04 when the vessel was shot down after the battle of Reach. In Halo: The Fall of Reach he is specifically mentioned as being part of the Autumn's command crew over Installation 04. In fact, he is suspected to be the first officer of the ship, however he is never mentioned in Halo: The Flood as being killed with the other command crew. So we must assume that he escaped the vessel and died somehow on the surface because he is never mentioned in the second book.