Black ops 2 which version to buy from where

[wildoliver]

Late as ever I want to get Black ops 2, basically price has come down now to around £32-35 and it's worth that to me, just wasn't worth £45.

I'd like the Nuketown maps which by the sound of it don't come included unless you buy a special edition so before I go and spend my money at Asda or Tesco what is the best value option to get the game and the maps?

Many thanks