What the hell, this should be in the game from the getgo (or at least free dlc)! Anyway, good thing we are getting it anyhow and hopefully they will put more effort to it to make it better than the mode in AVP2010.
Any info if this mode will be playable in splitscreen mode? I hope it will be, playing survival mode in MW3 splitscreen is quite fun. It would also be great to add bot capability to the other mp modes for some more offline splitscreen fun.