As Valve ready the game for release in November, they've let the cat out of the bag regarding the first look at the pack shot.
Valve have also promised some more media later this week. Left 4 Dead is a co-operative zombie survival horror game that will allow up to four people to play several campaigns where the emphasis is built around team work. Using a revolutionary AI directory technology, the game promises to deliver a fresh experience each time. From what we were able to gather at E3, this seems to be the case.
Stay tuned for more!