open ur mw2 folder.
there would be a folder called zone.(open it)
then open a folder called (english)
In that search for a file called 'mp_playlists.ff'
delete that file.
now start ur game. it will download new playlists.
it shows that there are 101085 players because your mp_playlists.ff file has been corrupted. So delete it and start your game again. Now it will work.
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