Putty, people come here for help. Im sure he has already tried IW and Steam. I have lost my complete inventory in TF2 a couple times, finding it fine after restarting steam. Otherwise, at least people wont know how killer you really are lol. I know its irritating, but look at it this way.. You will be less likely to become tired of the game now that you get to start all over lol.
I'd throw my machine out the window on the freeway if i lost my Spec ops completion. Just finished Echo Explosive veteran last nite ... whatta blast .
I would give my machine and a few body parts to get MW2 EGO servers.