First of all machan, you need all files I mentioned below to play the game.
1. Official MP Rip --- http://staff.alteriw.net/tracker/torrents/aIW-Client.torrent
2. Official DLCs Repo --- http://bit.ly/DLCsRepo
3. Move_Stimulus --- http://dl.dropbox.com/u/8612467/Move_Stimulus.exe
4. Patch...