1) You must have bought the "Hardened" Special Edition of Black Ops for your first PS3. The extra zombie maps that are from World at War only come in that edition. Sadly, you currently cannot get the extra maps with a non-Hardened edition as of right now.
2) The Split Screen mode only gives the second player a copy of your profile. The split screen gamer cannot have a separate profile. They will always begin at the level you are at when you add the second player.
Sorry :( Hope this helps.
You should only be able to get the 3 main levels for zombies right now. Five, the german nazi theater one, and dead ops. In multiplayer if you quit and come back the guest will always have the same classes as the main user and zero money.
Its just how it works.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.