I was playing on Discovery and found a ton of stuff relating to zombies, test rooms, one with a hole in the glass around it and blood splatter with tipped over and blood splatter. papers scattered, some read DEATH RAY. Der Riese style radios. Lanterns. Power switch, trap boxes. Biohazard warnings. Blood test table, cracked tubes, etc.
http://www.youtube.com/watch?v=ye3mESJqy8A
vid of all EE on Discovery^
Then, I was playing Project Nova, and noticed MANY connections. First was in the one room where I found the DR radios, DEATH RAY papers, Lantern, and a map with circled spots on a USA map and that poster board with all the German phrases, EDIT:which I also found in the PaP room on Kino Der Toten. I found another room like this again. Then I found a missile on a small carrier in a building like in Discovery, except it had a missile that looked like one of the ones containing Nova6. I also found a room with the bloody test table, but 2 xrays on the wall. One of the torso of an organism. Another of the head of a primate like organism. Then I found the same kind of test rooms on Discovery, but no blood or cages, Just tipped over counters, etc. due to raiding Russian soldiers. Then, in the ship I found nearly nothing except the nova6 missiles which allowed me to make the connection to the others. And a Grim Reaper blood splatter on one of the walls as in Kino Der Toten and Ascension. I also remembered from the cutscene of Dimitri's death how they vomit the green blood after exposure, which connects to the green bloody vomit in the sink in Firing Range, but that's another story.