Today Activision announced that they've bundled all three map packs from Call of Duty: World at War together. The bundle is now available through PSN and Xbox Live in North America for $25 or 2000 MS Points.

You'll get twelve maps in total from this purchase. Nine are from the "normal" competitive multiplayer and the other three are for the zombie co-op mode. Each map pack costs $10 individually so you're saving a bit of cash by shopping in bulk.

Europe will be receiving the bundle as well. They'll have to wait until January 7th, though.