Okay I will gather all important information of Map Pack 3 as I am tired of all the threads(I know I am adding to it)
Although this can be useful. Hopefully this gets ALL of the needed and known information our of the way. We need all of the others to stop.
"On July 20, 2009, Activision and Treyarch announced that Map Pack 3 would be released sometime in August of 2009. This DLC will also consist of three new multiplayer maps and a new Nazi Zombies map. The three multiplayer maps are "Battery", which is when you are on an armored island surrounded by anti ship mines, "Breach", which is set in the overcrowded streets of Berlin, Germany. And the 3rd multiplayer map is called "Revolution", which is based on an industrialized city in Russia."
" The new zombie map will be called "Der Riese" (German) which translates to "The Giant" in English. It will be based in some type of factory environment in which you must fend off the zombies. As with Map Pack 2, Map Pack 3 will add an additional 10 achievements/trophies."
Screenshot Of Zombie Map Pack-