You can make action pack with the 4 heros in the cod zombie games and include thing of the game in a display of the map they came from....
Nikolai, richtofen, Takeio and Dempsey with a perk cola machine or the mystery box. As a weapon you can have the raygun or a modify Galill !!! Put that with a reference to the map... a red seat from Kino Der Toten...