Disappearing on The Covenant (Level)

The Disappearing on The Covenant (Level) glitch is a glitch on the Halo 3 level The Covenant that can make you disappear (though not being outside the map).

How to do it
After activating the second tower, quickly run towards the Elite Phantom. Kill one of the Elites using a Plasma Cannon and jump on it. After a while, the Phantom will fly away, and once it reaches a certain area, it will activate its Active camouflage along with you. However, the Phantom will not move and will remain in that condition until you eject from it.

If you eject from the Phantom, you will experience a rather slow fall which will be fatal upon reaching the ocean. Your shields will have been dispersed.

This can also spark the two arbiters glitch. if you destroy this Phantom before the Arbiter enters, he will get in the Warthog if you drive it. After killing the Scarab the same Phantom will appear and drop off another Arbiter.