Ultra Magnus is the incumbent Supreme Commander of the Autobots, and led his faction through the Great War with the Decepticons. During the war, Ultra Magnus commissioned Project Omega as a desperate measure to defeat the Decepticons, despite his regret that the Autobots were creating a series of living doomsday weapons. After Ultra Magnus led the Autobots to victory, the Decepticons were exiled from Cybertron, leaving the planet at peace. Ultra Magnus later regretfully expelled Optimus from the Autobot Elite Guard after he assumed responsibility for the apparent death of Elita-1. However, due to liking Optimus and suspecting that Sentinel was not telling the whole truth of the incident, he promoted him to Optimus Prime and gave him command of the stasis-locked Omega Supreme.