So i downloaded off the playstation store for 10 bucks and it has one new nazi zombies map called Shi No Numa and three new maps called Banzai, Corrosion and Sub Pens. Overall the map pack is fantastic. The Shi no numa is a mode that is even harder than the last nazi zombies mode and it also includes flaming dogs which blow up if you shoot them. Awesome. The banzai map is huge and is fun to roam and has a bridge. The Corrosion is smaller but has a ton of action. The Sub Pen takes place on a ship and in my opinion is best played on search and destroy. That's a little info about the map pack.