I agree, SP is not what it used to be.
I think Modern Warfare 2 lacks the always in your face action that MW1 had. You never quite know what you'll see next (sniper mission, AC130 mission, storming a nuclear missle base), which is not really the case for Modern Warfare 2 (it's basically same mission, different paintjob). Also I think the lack of closure in this game hurts the story (sort of like a end of Halo 2, level of hurt).
I'm enjoying MP right now, but I hate how big certain maps are, it's not really necessary and sort of hurts the experience (I loved MP in the first game because of how close and tight the action was). That was my gripe about W@W (maps too big and there's too few vehicles to allow for quicker travel).







