Colonel Ezra Loomis is a stern, by the book COG commander, Loomis is a career soldier who has little regard for the lives of civilians. A veteran of the Pendulum Wars, Loomis has had a difficult time adjusting his tactics to deal with the inhuman Locust threat, and disapproves of Kilo Squad's unorthodox tactics. When Sofia Hendrick comes up with the idea to use the Lightmass Missile to take out General Karn, Loomis refuses and Kilo goes against his orders. When the time comes to fire the missile, Loomis threatens to execute them if they do, but they fire it anyway. Keeping to his word, Loomis puts together a tribunal, refusing to stop even amidst a Locust attack. Loomis nearly executes Kilo before the Locust burst in and Private Garron Paduk, who he shares a hatred with, saves his life. Loomis flees, but later rejoins Kilo in trying to reach a King Raven. Loomis aids Kilo in taking down Karn and his mount Shibboleth and personally executes Karn afterwards. In light of what happened, Loomis drops the charges against Kilo, but demotes Baird to Private. He also offers a hand to Paduk as a peace offering that he refuses. Loomis is later killed trying to defend Halvo Bay in a fight that costs him and his men all of their lives. A memorial is erected in his honor as the "Hero of Halvo Bay," one that survives for seventeen years of war and destruction.