What the hell...Why would you download a mod for Doom 3? That completely ruins the game experience and takes all of the fun out of the game. It makes it easy and crappy. The flashlight is a separate weapon for a reason, that's how the game is supposed to be played! I'm sorry, but in my eyes, you haven't beaten Doom 3 until you've done it on Medium difficulty with no cheats and no unofficial mods. I beat it the day after it came out on Hard and I'm proud of it.
Beating it with a mod would basically take away all pride I had for myself. >_> Oh, well. I just wish those mods never came out.
And btw, Surround Sound does rock for this game.