Posted by yasick.
:: Effective Graphic Tweak with RivaTuner ::
*Download RivaTuner.*
*you NEED to have ForceWare drivers for your graphics card in order to have a Customize button*
*** Red dot sights \ Holographic sites wont work, with this tweak.
Download external Crosshair if you like using those sights or just to help
you aim.
Undetected by anything. Can change size\colour, use in any game.
UC-Downloads - Multiplayer Game Hacking and Cheat Downloads - Universal Crosshair [Undetected]
1: Download RivaTuner from the link above, install and run it, (Leave everything as default)
2: Click on Power user tab. locate [+] Riva Tuner \ Nvidia \ Global.
3: Change the value of LODBiasRange to 25 and hit Apply

4: Go back to Main tab, and click Customize, below Driver Settings. Then in the new menu hit DirectDraw and Direct3d settings.

5: Then in MipMap LOD bias Adjustment slide the bar to 15.
Done. =)
Few Examples ::