Buy Call of Duty Modern Warfare 2 cdkey. Can be added to your steam account. Works for any region.

This Cdkey was designed for russian version, but after a few manipulations, english, german and other languages can be installed *only for multiplayer See Instructions Below

Delivery to your email usually takes a couple of hours, however please allow up to 12 hours for your order to complete

We work from 6:00 to 21:00 GMT 7 day a week

For more info email/msn trelliz@hotmail.com

Instructions

1 ) Install your English/ or any other language -version of the game from your DVD's/torrent. *using LUKSI INSTALLER - GOOGLE LUKSI MODERN WARFARE 2
2 ) Cut/Copy the folder named 'Call of Duty Modern Warfare 2'
3) Log into your new Steam account, activate your cdkey. Then Right click on MW2 MP>properties>language>choose language which you installed in point 1) - the game will start updating/downloading - you do NOT have to wait for download
4 ) Right-click on Mw2 Single Player and Mw2 Multiplayer and choose "Pause updating", ON BOTH !
5 ) Logout of Steam and open your; \Steam\SteamApps\common\, here you should see a newly created folder named 'call of duty modern warfare 2'
6 ) Remember Point 2? We Cut/Copied the folder we installed earlier, now replace the new one with the old one.
7 ) Start Steam, Right-click on Mw2 Multiplayer and choose 'Resume updating'.
8 ) Once it's done Updating, right-click on Mw2 Multiplayer and choose 'Properties' and then Local files and then the final button: "Verify integrity of game cache". (This will make sure that you have the LATEST files of thegame, if not Steam will automaticly update it for you !!)
9 ) At this point you should have a fully working Mw2 Multiplayer, if you get start-up problems at this stage; the only thing you should do is re-log into steam and that should be it.

In case you get an error with new patch_mp.ff you can download it from  

http://www.megaupload.com/?d=FNLN0FEF

There is more information on official steam forum.