i was think like a twist like what if the nazis real did make the zombies and ended up using them to win ww2(and after words something goes wrong with the genes of the zombies and they turn on the nazis)
the story wouuld have an american russian and maybe an african
the american missions would be him trying to help out surviers and looking for secret bunkers to save as many people as he can so he can revolt and destroy the zombies(ends up finding a bunker just to find hordes of zombies in there)
the russian would try searching for hidden nazi information so they can find a way to kill the zombies from the inside(but die at the end)
the african would have to fend of different kinds of zombies animals and try to reach a chopper out of there
i was thinking for a side game
they have the orignal zombie style game (make the zombies act more like zombies then mummies)and have an insta killl mode or start off where u last died
new perks
new waffe weapons(idk like a top that cuts up the zombies or something)
more types of zombies
-normal
-mutanted(and i dont mean glowing im mean dicusting looking one that are 10 feet tall)
-ones that kind of move like the possesed and crawl around all fast
-animals hienas,lions,zebras,horses, and bears
and a zombie playing mode
where ur a special zombies that the nazis made that could actual think and you actually like people
you'll have to kill 12 other "smart"zombies and each one u kill the more zombies that will respect u and follow and help u out
you have have any other ideas please feel free to post anything thats on ur mind