This theory is to prove that a future zombie map will take place on Firing Range. I don't have a capture card so I went on youtube to find the evidence I found. First there are PAP flags around the map, a teddy bear, and bullets that say Tank Dempsey.
Teddy/Flags:
Bullets:
The next is a sign that says "gateway to hell" outside the map.
Sign:
Beyond the sign are bombing jets on a runway.
Now for the dreamland server. when you open up vbush's documents theres one that say servanta00115. When you open that file it gives you locations of element 115 two of which are the moon and Groom Lake. Groom Lake is a salt flat in Nevada North of Area51, has runways for bombing planes.
Groom Lake:http://en.wikipedia.org/wiki/Groom_Lake
If theres is anything I havent said you can post it here if you want.