* Modern Graphics (DoF and HDR is activated by default)
* Sikkmod v1.2 (Awesome Mod made by Sikkpin)
* HD Textures (Awesome Textures made by Wulfen1)
* HD Main Menu and Fonts (made by 6th Venom)
* New Weapon Model(s)
* New Weapon Sound Effects
* New Main Theme Title Music (deactivated by default)

2) is to use a custom shortcut to load it directly.  You do this by creating a new shortcut for your "Doom3.exe".  Right-click on it and select "Properties".  Click on the "Shortcut" tab and in the "Target:" field put this: