After the Fall of HALO and The Covenant defeated. The UNSC decided to rebuild their Spartans, there were twice as Many Spartans as Marines. Just when they thought there was nothing else out there, the Covenant came back. No one knows how but they did. They regrouped from Stronger Brutes, Grunts, and Hunters. No one knows how they did but only that they're were some remaining Covenant on their Home Worlds that must've grew Bigger Populations. Their back with Stronger Troops but the Elites came back to assist the Humans. Who will you fight for?