My problem is there's no teamwork. That sounds insane but compare it to other games where you can have a medic, or you can give ammo, or you can sabotage a gun.
MW2 is you step out and die, or someone JUMPS around with dual shotguns.
Its nothing it advetizes itself as, it's not really a team shooter, it's not really a military shooter. The only tactics are noobtoob and morons jumping around or bunny hopping, whatever you want to call it.
I hate to compare but put it against Bad Company 2 where you can revive a teamate, give him ammo, callout where an enemy is, repair vehicles, etc what does MW2 hold out in terms of teamwork? Besides getting blown up as a team with a single noobtoob.