At the time of it's release, this was the big "comeback" to the franchise for me personally. I enjoyed every minute of the dozens of hours I sunk into the zombies, multiplayer, and yes, even the campaign which is one of the best in the series.

In hindsight, I believe the reception of this game has only gotten better with the current state of the franchise (following the release of MWIII as of this writing) leaving many players frustrated.