Lately I've been taking a lot of screenshots outside the playable boundaries of maps and levels. I was on B.net and asked how to get outside Epitaph and the response I got was to look up pan cam on youtube. I found some pan cams on the B.net forums. Can anyone explain what pan cam is? Does it require a hack to initiate? What about a film declaring to open debug mode? Thanks.
I've made a general tutorial about Halo 3 screenshots, scroll down until you find the section titled The Pan Cam Glitch. It's no mod, it's just a way for developers to edit the map quickly in engine, but it was left in for theatre before the game was released.