Whenever I try to create a new sound, or even edit an old one to point to a new path, the button stays at 'Add a sound.' and nothing has changed when I created a new one, or I've essentially deleted a sound when I edited one.

Any ideas whats going on?

Try using NVedit to edit that path to be what you wanted.

Filepath seems to be key. FOOK's nightvision SOUN record pointed to Sound\FOOK\FX\UI\Pipboy\ui_pipboy_nv_on.wav and it wouldn't play in game or GECK until I moved it to Sound\FX\UI\Pipboy\

http://www.gamesas.com/index.php?/topic/1127449-problem-with-playsound/page__p__16632664__hl__FOOK%27s%20nightvision__fromsearch__1&entry16632664

Turns out it was a combination of two things. First the directory, thanks guys And the fact that it was an .ogg file :facepalm: