-General Sean Glacies John 117, or better known as Masterchief, was a former Spartan hero involved between the war of Humans and the Covenants. John 117 is responsible for turning the tide for the humans against the Covenant and the Heartless. He has gain fame and popularity. But he, alongside his holographic AI and friend Cortana, disappeared somewhere in space after escaping a Installation 04b (Halo) that will be destroyed with the parasite Flood, an alien race that consume the living, in it. John and Cortana are presumed missing in action and a search party was released to find them.