Call of Duty 6 - Incomplete installation, wtf!
"Incomplete installation of Call of Duty: Modern Warfare 2 - Multiplayer (10)" after steam update
So, Valve have outdone themselves this time. They've managed to break the installation of CoD: MW2 on many people's pcs. Were we asked if we wanted the update? No. Were we asked if we wanted to apply it now? No. Can I play the game that I bought? No.

Thanks Valve, you really can't code for shit...