So after fiddling around with that sound issue, I end up finding a solution to the problem. First I tried to wipe all the custom the downloadable files; that did not work. However after I uninstalled TF2 and re-installed it the sound issue fixed itself. Apparently there was something blocking it client side through TF2 itself (which I think was a bit odd). Well at least that's fixed now. Also I can tell anyone else who was having the same issue to do the same thing. Not sure if doing the same thing with the server will fix that other issue though.