Attaches the sound soundHandle to unit whichUnit. Attaching sound to unit means
that the more far away the player stays from the unit to which the sound is attached, the less
loud the sound plays (the volume of the attached sound decreases with increasing distance).
Attaches the sound soundHandle to unit whichUnit. Attaching sound to unit means that the more far away the player stays from the unit to which the sound is attached, the less loud the sound plays (the volume of the attached sound decreases with increasing distance).