To get in an Anti-Air wraith the one on the covenant works best on easy. In the beginning of the level kill all the guys except the wraith get on top of it and melee the cockpit you should see the brutes head slap it once and his armor should come off. Then crouch and on the top there should be a place where u cant jack it. Then old RB and the right thumb stick and slap his head it takes some practice. BUT IT ROCKS!