Disappearing on The Covenant (Level)

There is a glitch on the level The Covenant that can make you can disappear (though not being outside the map). After activating the second Tower, quickly run towards the Phantom. Kill one of the Elites using a Shade and jump on it. After a while, the Phantom will fly away, and once it reaches a certain area, it will activate its 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 very slow fall which will be fatal once you reach the ocean.