Note the F'lickta poster on the wall. Now that's either a very well used poster or Bungie have alot of them lying around!
Bungie had the same poster up in their old office back in 1996 as these two pics from an IMG tour of Bungie reveal.
Note Jason Jones working in background of this shot. If you have the Bungie tour movie watch how Jason reacts when Doug and the cameraman approach. I guess he was busy. ;-)
A close up shot of the F'lickta reveals that it isn't a poster but rather a cutout