Roaming spectator

The Roaming Spectator glitch is a trick used to freely roam a map by getting the Spectator camera out of the map, through theater.

How To Perform
To Get the camera out of the map you must simply get your character near the top of a barrier then end the game. Next go into Theater and load that game. Play it through until your character gets to the part near the barrier. When he is near the top pause the game then move the camera into 3rd person pivot (where the camera pivots around your character). The move the camera on the other side of the barrier where the camera would physically be behind the barrier then press Y to detach camera then free roam.

Explanation
This glitch occurs because the game has no push barriers outside the map.