I'm glad that someone feels the same way that I do. Not every game needs some sort of zombies in it. Seriously. If I wanted to play a zombie survival game I would throw in L4D2. Developers need to try and focus on something other than zombies for a while.
If they want to come up with some twist on horde or firefight make it interesting, make it original. Don't just throw in zombies and call it golden.
i agree 100% that zombies are unnecessary and it wasn't that great in the first place. i hated waiting for zombies in the starting waves which lost my interest very quickly and all the add-on achievements where zombie related... i pray that they don't add achievements in the add-on this time D: