Based on data extracted from patch 2.4.
Doom Lord Kazzak
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Aggro02.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Intro01.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Slay03.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Supreme01.wav")
/script PlaySoundFile("Sound\\Creature\\DoomLordKazzak\\GRULLAIR_Kazzak_Supreme02.wav")
Doomwalker
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Aggro01.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Death01.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Earth01.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Earth02.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Over01.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Over02.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Slay01.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Slay02.wav")
/script PlaySoundFile("Sound\\Creature\\Doomwalker\\GRULLAIR_Doom_Slay03.wav")