I find the weapon sounds in PSX Doom to be more... badass (when a BFG makes its impact, you'll definitely know it), so I compiled them into a little PK3 that I now always use whenever I play Doom. All the weapons with different sounds have their sounds replaced, and additionally it changes the chaingunner's attack sound to the pistol which with its new sound is more fitting (the spiderdemon's attack sound is left alone so her super chaingun still makes shotgun sounds, fitting since each shot is a sergeant shot anyway). And as an added bonus, it changes the SS nazi's attack sound to its machine gun sound straight from Wolf3D.
Just a little something I wanna share with everyone after using it for so long now. I take no credit since the sounds aren't mine anyway; anyone can make a similar compilation. Major thanks to the people who brought PSX Doom and Wolf3D to (G)ZDoom
http://www.mediafire.com/?uiemt1n7r6xqvok