;sounds (name of the sound, volume (0.0 - 1.0), delay (sec))
snd_draw = weapons\generic_draw, 1.0, 1.0
Poked around through .ltx files for a few weapons and found this info.
**very short memo; made a note of it here as I learnt this today :D
***EDIT: the above shows how they are structured and what the additional numbers after the sound file names mean.