User blog comment:Bovell/New Modern Warfare 3 teaser trailers released!/@comment-3422344-20110514200403/@comment-1895461-20110514201620

Technically, they could do zombies. Treyarch doesn't own the idea of zombies. If that were the case, there wouldn't be any Dawn of the Dead or Left for Dead. They'd get crap about it from Treyarch and some fans but I don't see why they couldn't. It's not like Treyarch hasn't stolen things from IW. Look at the reload animations and the character models in Black Ops. Reznov IS based off Imran. They'd have to come up with their own zombie animations for it to fly with the community but I still think they COULD do it if they really wanted to. Not that they will.....and aliens?! That is the worst idea I've ever heard...