Turn on the Xbox and wait for the title to play.

The Halo 2 logo should just be there with some strange characters shifting along the bottom of the screen. Keep watching the one directly below the Main "HALO 2" there is a name scrolling: David Candland. As soon as my brother put it on i noticed it straight away.

David Candland is the User Interface Manager for Halo 2 and Bungie.

There is also a Tterrab Industries on a building somewhere in the first couple of levels.

Christopher Barrett is one of the Lead Environmental Artists for Bungie.

However there may be more.....