(adsbygoogle = window.adsbygoogle || []).push({}); Here is an Tutorial to get 10th prestige and have it stick on Alteriwnets serers.
In the console type setplayerdata experience 2516000
Then Prestige and continue still Tenth or the prestige you want.
Quit the game and reopen if you don't believe this will work.

Now for rank download an 10th patch here: You must login or register to view this content.
Make an folder called mossyv8 and put the patch in there.
Then put the folder in the mods folder of the Modern Warfare 2 <dir>
Then in the Console type fs_game mods\mossyv8
Controls for Mod Menu are Q and R
Go to private match and spawn 3 bot and go to the Host menu and select big xp.
Get 4 kill and end and start and repeat and continue still 70. More than 4 kills it won't stick
After reaching 70 go to Players and Click your name Unlock all challages.