Call of Duty 2 Tweak Guide
 

I've compiled this Call of Duty 2 Tweak Guide to help all COD 2 players out. The guide runs through all the in-game settings in careful detail, providing lots of screenshot comparisons of the main graphical effects to aid you in deciding on the precise balance of performance vs. visual quality on your system. It covers all the advanced tweaking possible in Call of Duty 2, and finally it provides links to a range of valuable resources to help you in troubleshooting, modifying and patching the game.

http://www.tweakguides.com/COD2_1.html