Planetary multiplayer kind of like planetside with the separate battles. Ability to chose your class land or space and. Fight your way if your better at one of the two. Tech trees like infantry or antitank. Flood, human, and covenant campaign. Forerunner vs. Flood expansion with limited numbers so you really feel like you are at the edge of being defeated. Special powers if your side of the war is losing like glassing a planet or building the UNSC Infinity for an edge to get your team back in the fight.
