As many of you know, there are multiple theories on a much larger Easter Egg then just songs and a few Richtofen quotes on the Nuketown zombies map. I agree with those people and compiled a few stark facts hinting at a much larger Easter Egg, I personally haven't discovered it, but with these discoveries and the help of the community we could possibly find something huge! Please leave any thoughts/discussion below that can help us discover this Easter Egg!
Ya my friend and I recorded 3 hours of gameplay last night and we got the same things to happen and we got the door to talk 3 times, I know partially what he says in one of the lines: "There's zombies on the camera." Maybe that will help someone?