Updated for 4.3.4
Kill the Goblin Trike Sound!
I have ordered the file structure accordingly already, just to go over it again it should look like this:
World of Warcraft/Data/Sound/Creature/GoblinTrike/
If at any point the folder does not exist create it or just drop it in from the folders included inside the zip.
Chopper Killer is "NOT" required for this to work.