I'm going to be doing an OS reinstall and was wondering if anyone knows for sure how to backup your player profile with COD4. I play via Steam and there is a backup function for the game but I'm not sure if it just save the downloaded game files or if it also includes save data.

I dont know about steam but for the disk version in the player folder is a profile folder that has your profile . you might check there to see if it is stored on your computer the path is C:\Program Files\Activision\Call of Duty 4 - Modern Warfare\players\profiles you might need to change the drive letter based on where it is installed if steam even does it

I just reformatted again...rank 1 here I come!!But I heard that if you copy your "file" you can save it that way.

Thanks for the advice SSPEAKS it pointed me in the right direction. There is no Activision folder for Steam users but I did find it here:

 

C:\Program Files\Steam\steamapps\common\call of duty 4\players\profiles

 

I thought I had browsed through all the steam folders but missed it the first time.