Elliot was a British soldier that participated in Operation Shear.
Under the command of Lieutenant Childress in the 24th SAS Regiment's H-Squadron's K-Troop, Elliot and his men were sent ahead of the rest of the unit alongside Sergeant Brierley to take a nearby Chimeran bridge to reinforce Lt. Stephen Cartwright.
With Childress and his half of the company dead following the storming of the mortar position, Elliot was sent by Sgt. Brierley to rendezvous with Nathan Hale, who had been the sole survivor of the Childress's unit and had successfully infiltrated the train tunnels that were previously blocked by a Chimeran power conduit. En-route to Sgt. Hale's position, Elliot and his squad were ambushed and killed by a Titan.