Phantom glitch on The Arbiter



To look at the "Phantom Glitch on The Arbiter", as soon as you start the level "The Arbiter", turn around and zoom in on the Phantoms. After watching them for awhile, they disappear into the clouds and spin out of control, one even crashes into a platform below. The other two will keep on falling until they hit the bottom of the level. This probably happens because Bungie only planned for them to travel a certain distance and upon reaching the end of their route the game physics take over.

Also at the start of the video for that level, the Covenant Dropships seem to be in the foreground (i.e. when the Phantoms go past the dropships the Phantom appears to be behind them). You need to look closely but you can see it. It is possible for the Phantoms to be scripted into being sucked into the maelstrom.

Trivia

 * Sometimes, when spinning, a Elite will fly out, and disappear in barely a second.