Yo, got a little problem. In the storyline, the first time you see Gravemind, he is on Halo 2, right? He then teleports the Chief to the mauseleum, in the big covanent mushroom ship, right? (How does he do that neway??) As I recall, the ship never lands on Halo 2, so how does Gravemind get to the ship in the last movie? What gigantic revelation have i missed??