Halo 3 Easter Egg - Enviroment Artist Names

On the multiplayer map Last Resort, go into the large building\base. On the left side of the building, there's the gate. If you look at the large red sign painted on the wall, it says at the bottom "Buelterman Carney Cotton & Hayward Inc." This is a reference to the actual developers names. Chris Carney was multiplayer enviroment lead, while Justin Hayward, Mike Buelterman, and Steve Cotton were all multiplayer enviroment artists.