This MOD is more or less an archive for FreeDoom that contains some of the sounds from very early versions of FreeDoom.
This is a MOD that contains some of the sounds, and all of the lost tracks, from earlier versions of FreeDoom. The name of the file in the folder is called freedoom_sounds_lost.wad, but that won't matter, since you can just simply load the .zip file into Doom with no hassle.
Not every sound effect is in this MOD, so it's best not to run it with any of the original IWADs.
This is an archive MOD, and is NOT intended to be in later releases of FreeDoom.