at first, i did not want COD5, but now...
OMG MUST HAS COD5

ok... I guess thats their way to try to compete with l4d...
What a total rip off of not only Left 4 Dead but Gears of War 2. That is why I never liked treyarc, they never knew how to make their own games they just copied and paste from infinity ward. While I didn't see this coming it gives me yet another reason not to pick up the game. The zombies comes from Left 4 Dead and the whole idea of fighting them off coop is Horde mode from Gears of War 2.