So I finally figured out that my play sound command was fine, it will work in the script outside of the function as intended.
But when I try to put it inside the functions it will give an error saying that the HITFLESH variable is undefined.

Bottom line, is there no way to play a sound inside of a functions?

Function DamOrKill(Float Damage, Actor Target, Actor Attacker) globalif Damage >= 1Sound Property HitFlesh  Auto ; I have tired to define this var both here and outside the function.HitFlesh.play(target)endifendFunction

This also will not work if I define the HitFlesh variable at the top of the script (outside of the function).

How are you calling the function?
And the Property should be outside the function.

@spooky, read over that http://www.gamesas.com/topic/1360171-playerref-gamegetplayer-or-do-it-in-properties/page__view__findpost__p__20519862yesterday about Global functions having to work solely from their parameters.
So if you want to use a sound, then create another parameter for it. (or lose the global flag)