Spartan-044
From Halopedia, the Halo wiki
Summary
Anton-044 is not well known. He was trained on Reach as the SPARTAN II's Zergo-Gee specialist. He was in the red team and survived the free-fall. His was assigned "delta" section (the mission was to evacuate vice Admiral Whitcomb) during the defense of the MAC-Gun reactors on Reach after Admiral Whitcomb's message was received. Later on, Master Chief found them (Li-008, Anton-044, Grace-093 and Vice Admiral Danforth Withcomb). His last mission was to repair a breached plasma conduit of the Ascendant Justice in zero gravity. A plasma torpedo hit him and he died along with Li-008.