I have planned this over 2 months, and I decided to tell it here..Campaign
is based on WWII, when Germany is fighting in Russia ( Winter ) Player plays as a German soldier.
In first mission you have to defend a city, when ruskies are attacking on it. While you're defending the city, you hear that there are lots of ruskie tanks coming on that city, so you have to retreat. And now it happens - zombies
Suddenly some dead corpses starts to live.
While you're retreating with your squad ( by car ) you see a dead corp on road ( German soldier ) Your squad leader looks at it and.. "IT'S A ZOMBIE, GET AWAY!!!"
I haven't made nothing else with my clever ( heh ) mind. If you want to make a campaign from this, you should continue that story.