Drop pods, space ships and space battles, all the vehicles and maps that are both air to air and land battles. With glassing, mac cannons and everything else. Slightly like Battlefield 3 (check out the Caspain border trailer, so you know whatI mean) havethat sort of air to air/air to ground, but with Halo stuff, different gamplay and crusers. Make it a Halo, not a Battlefield. Halo's would be far more epic.