Did you name it “special1.wav”?
Did you place it in the “…\sound\weapons\grenade…” directory?
Is the sample rate correct (44100 Hz)?
I tried editing a soundfile myself a few moments ago (the houndeye “blast1.wav” sound) and it works just fine, as long as you keep the original name.
Technically, the above “statement” is partially wrong…
You can use custom sounds, without using their original names, as long as you define said “new” names inside the script:
"weapon_frag.Special1"
{
"channel" "CHAN_WEAPON"
"volume" "VOL_NORM"
"soundlevel" "SNDLVL_NORM"
"wave" "weapons/grenade/special1.wav"
}
Note: The code above is a section of the “game_sounds_weapons.txt” script (located in: “…\sourcemods\BMS\scripts”).
This is what an edited version of the section could look like:
"weapon_frag.Special1"
{
"channel" "CHAN_WEAPON"
"volume" "VOL_NORM"
"soundlevel" "SNDLVL_NORM"
"wave" "weapons/grenade/specialcustom.wav"
}
Note 2: Do NOT change “weapon_frag.Special1” - it is used as an IDentifier; if you change it, the game will not play the sound file at all.
If you’re still having trouble, don’t hesitate and just ask!