The betterweaponsounds_b1.zip file you have requested: Clear Sky / Mods / Weapons / Better Weapon Sounds - 497.82kb is not available. Perhaps try browsing all files for the game S.T.A.L.K.E.R.: Clear Sky and upload any files you want to share or are missing. This is the only information we could locate:
Replaces all weapon and grenade sounds with better sounding higher quality sounds. Tested with Clear Sky v1.5.04but it should work with any version and possibly work just fine in any version of Shadow of Chernobyl. All sounds have been ogg commented and are error free.