I installed bootcamp 5 for my late 2012 iMac 21" and installed the latest version of windows 8, however when i boot with windows i dont get any sound, what can i do to fix this?

I'm trying to playa game called day z (not sure if many are familiar) through boot camp 5 and the newest version of windows 8 it's pretty much a must to hear everything going on around me and I can't exactly do that when the sound drivers aren't working. I've updated all of my software and still nothing is working. If anyone has a link to the newest windows 8 sound drivers it'd be greatly appreciated. Or if you have any other solutions it would be greatly appreciated!