You really do. COD4 in particular is a really good campaign.
I have never played the multiplayer of either MW1 or MW2. To me any game that doesn't have a cover mechanic like Vegas would be a waste of time for me to get into...run, shoot, run, shoot, die. I've been doing that same crappy gameplay since Duke 3D on kali in 1994 or something, and Duke3D did it better with tripwire bombs and jetpacks. Well, Shadow Warrior did it the BEST...but I digress.
Multiplayer shooters are all the same to me now. Same gameplay, different graphics, they make 'combat' feel more like a game of basketball. Spawn, Sprint, Shooot and hope you don't die...rush rush rush rush rush to an objective, to kill others, to pick up a weapon spawn, and on and on it goes.
Real Combat is mostly slow, tense, but never Run-and-Gun, and that is why I hate online multiplayer shooters, they all suck universally because they are all about speed, and that just gets oooollllddddd. Battlefield 2 was the last game i enjoyed playing online, and then I hated playing online...it killed online gaming for me, because it was the closest thing to a real battleground i'd ever experienced...and yet the gamplay left me so utterly cold that it was clear multiplayer gaming would never evolve beyond the sprinting spray-and-pray or camp fests that online games inevitably all become.
I only play shooters in single player now, where the pacing is usually slower and you can progress at your own pace (unless its one of those bastard timed missions that I loathe).
The SP of MW1 and 2 are worth playing through, they are very fun when taken slow and methodically, and then the "Special Missions" are also the same way.
I realize there are peopel who love the online gaming, and to you I am glad these games are fun. To me, i guess I've just kind of gotten tired of the same-old, same-old with these games. But its not meant to be a slam on peopel who play them, I used to love online gaming.....back in teh Build3D games, back playing a game like Terminator: SKynet, even back playing Quake and Quake 2 (which all games feel like now) or Action Quake or the offhadned grapple quake2 with modified weapons (speed fests)......today I just want something slower, and a little more tactical.