Nu****wn Zombies Easter Egg Speculation!

[jakerad95]

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 Nu****wn 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!

[Fuxtobegiven]

There's power boxes on the sides of the houses... when you knife them they open. They dont break as most things do, they actually open and make a distinctive sparking noise.