Spec Ops was just a Fail part of a Fail game. After the smoke blew away MW2 just rolled over and died even though we still play it >.< . Spec Ops did nothing but make Achievement whores happy. It wasn't fun, plus it was only 2 players. Seriously? No add-ons either? Are you kidding me, there's not even a comparison.
What zombies had going for it was it was so unique. It could have been it's own game if Treyarch devoted their time to it. Don't deny it, you know it's possible, too bad it's just a piece of a game. Plus all the Map Packs. I'm glad zombies are confirmed.