CoD is just bang bang bang. If you look below the surface there is plenty missing, but why would you! What I do love it is does populate these will really moving moments. I wouldn't say the airport level is the most harrowing, but when you are rappelling down in the last level (maybe 2nd last) and you stab that guy, and you see his vacant eyes just staring out, that moment alone does say a lot, and I wish that they did tone down the bang. They could have made the levels set in America that bit more moving if there hadn't been so much fighting. At points it did make you sit there silently in shock and awe, but it could have done more of that....
But the incredible MP makes up for any shortcomings in the campaign, bring on MW 3!