I've just looked through it, and there is one sound missing, FedHeavy.
The other phaser sound could potentially be missplaced because in the rar the directory is sfx/weapons/PPHaser.mp3
But, I think a bigger oversight is this:
Foundation.SoundDef("sfx/Weapons/PPhaser.wav", "LintsQuantum", 1.0)
Foundation.SoundDef("sfx/Weapons/PPhaser.wav", "LintsPulse", 1.0)
Foundation.SoundDef("sfx/Weapons/PPhaser.wav", "LintsPhoton", 1.0)
Or more specifically these:
LintsQuantum
LintsPulse
LintsPhoton
They are never referenced in the mod.
The only 2, non stock sounds, are PPhaser and FedHeavy. And they are not included in this mod.
[EDIT] Stick this in a file with the name LintsDefiant_SoundpackExt.py
import Foundation
Foundation.SoundDef("sfx/Weapons/PPhaser.wav", "PPhaser", 1.0)
And atleast some sound ought to work.
[EDIT 2] I just put it in a file myself....