On the last level of halo 2, when Johnson
blasts the door to the control room you find it impossible to make it far
into the building With a banshee. But all you have to
do is CAREFULLY shoot off both wings.
If you did that correctly you should be
able to make your way to a door, get out of the banshee and back in it. It should open. Then fly into the door that the brutes come out of. once in the next room when, the movie is over go backwards into the long
hallway thing, your banshee should be parked there. Hop on in and show
ol` tar-tar to never mess with an arbiter.