Well its a lot more plausible than the Metroid/Starfox Crossover! http://www.overkillsoftware.com/ For those not in the know about this PC/PSN title, Payday: The Heist is a episodic squad based FPS where you infiltrate a banks to rob them. You also do carjacks, trade hostages...not too sure how it would work with zombies and that running around maybe you're in the middle of a heist and then zombies turn up. I was interested in this title but mediocre scores and mediocre word of mouth from gamers just put this on the back burner for me until like most others completely forgot about it. Still they must have something special if the likes of Valve ok'd this and to be honest it could be a fun title.