How do I?

Youtube or google ''Pan-Cam''
Can't really tell you, cause i've never done it myself,
afraid something bad would happen to my halo 3, or my xbox .. ;0

 

You can search pan-cam or out of maps in theater on youtube which basically tells it all.
How i do it most easily is get out of a map using reciever nodes then i turn into a monitor and fly into a death barrier. then in the theater, i detatch the camera after i die but pause time. then i just fly out.

 

That works just as well slash, on some maps. But not all
It works well on construct and The Pit