Try the Call of Duty wiki. Look up Easter egg trophies in Black Ops, and you should find a huge chunk of the story. As someone who did all those, zombies starts in veruckt, then she no numa, then in der riese they overload the teleporter and go to the 60s. Here, Richtofen starts his quest to control the zombies, who were made in Nazi Germany originally (in Der Riese), and have expanded across the world. He 1st travels to Siberia toa cruise the golden rod, and then to the Himalayas to get the focusing stone. His companions don't remember much, so they aid him just to survive. In "Moon," Richtofen unlocks the pyramid housing Samantha, a little girl who controls all the zombies. Her father was killed by Richtofen at Der Riese, and she was thought to have been. After some steps, Richtofen trades bodies, and controls the zombies (they now have blue eyes.) Discovering his plot, the characters use the base's missiles to blow up the Earth so Richftofen's power is contained. That's a brief synopsis of the World at World and Black Ops story. Haven't picked up Black Ops 2, but Tranzit seems to be set on a destroyed Earth.