This is a quick tutorial on how to get out of the map “Composer” in the Halo 4 Campaign at the second airlock room. This trick allows you to get into the Airlocks, and be vented into space, as well as exploring the top of the station. You can also progress and hit a loadzone to the next area that will let you get out of the “Space Battle” area as well.
Out of “Composer” (at 2nd Airlock Room) Tutorial: http://www.youtube.com/watch?v=2-1HcGoT2Rw