Black ops world at war zombie maps?

i have the regualr version of black ops and i really want the old world at war maps for zombies, the code comes with the hardened and prestige edition, if anyone has a code im willing to trade 1200 microsoft points for it, i have an 1200 microsoft points code that i won from a raffle, please dont write your code in the answer below just email me at nick_biggz@hotmail.com