Any help with using mods on Steam?

[umpalumpa47]

I don't know if this is where I'm supposed to post this, but I'm just asking for help. Is there any way to use mods on Steam? I've been googling for about 2 hours now and I can't find anything that doesn't involve Liberation, and whenever I use Liberation, it says that Modern Warfare 2 isn't installed when it clearly is. Any help would be appreciated.

[Lovroman]

Make sure that only one Liberation window is running(as other windows are usually hidden)
And did you run it as admin?

[Horror]

Is MW2 installed in the default folder ? Steam/steamapps/common ?

[umpalumpa47]

There is definitely only one liberation window running, since I can't even open one. And I have all my Steam games installed in the SteamLibrary folder, but on another drive, would that maybe have something to do with it? Is there a default directory in which Liberation goes searching for MW2?

[Horror]

There is definitely only one liberation window running, since I can't even open one. And I have all my Steam games installed in the SteamLibrary folder, but on another drive, would that maybe have something to do with it? Is there a default directory in which Liberation goes searching for MW2?

Yea, that would be it.
Operating System Disk/Program Files (x86)/Steam/steamapps/common/call of duty modern warfare 2

[umpalumpa47]

Alright, I'm reinstalling it on my main drive, thanks!