I know I said I wouldn't pay $120, but I saw it for $80, so what the hey.
Campaign: Awful neo con rubbish, don't bother....seriously, they Quote everyone from Bobby Kennedy to Rumsfeld and the Talmud in the load screens.
Airport Mission: As above, I chose to participate and it's horrible, totally unnecessary and over the top.
Multiplayer: Stunning, as expected, drop everything and dive in, everything just seems to have been tweaked, the few levels I've played are drop dead gorgeous, really intricate and the sound...I can't begin to describe how good it feels to claim a kill by following footsteps through a building and deducing where the enemy is heading by the changes in surface sound and direction, I don't remember being able to hear gear rustling in the last game but it could be due to me owning a better set of speakers and headphones this time around.