So far I have COD: World At War, Black Ops, Black Ops II, Modern Warfare 2, & Modern Warfare 3. All the games are awesome! I hope they continue to make more COD games, because I would definitely buy them.
There will definitely be a lot more call of duty games to come. This franchise banks on this title. I however dislike that they reuse older graphics from their older call of duty games. This is the only breaking point. But is this game fun? yes definitely.
Call of Duty Black Ops 2 comes out November 13th. It seems as though they keep switching back and forth between Call of Duty with zombies and Call of Duty without, so I wouldn't be surprised if a new version without zombies came out after Black Ops 2 has been out for a while.