In case of projectiles, they have their own, per projectile, launchsound. But still use the same soundpack mechanism.
What is your exact problem? The sounds and the reflective shielding aren't working?
For the latter, it only works for projectiles, not phasers.
My observations of the files you attached:
In the soundpack, "100" is (mostlikely) not a valid sound file. The 2 other sounds are stock sounds, so you don't need to remap them. Remapping also has the potential sideeffect of no sounds to be played for that mp3/wav, especially if there are 2 sounds with different names, or 2 sounds with the same name.
The Reflector has a 2% chance that it will reflect.