Okay so I don't know 100% if people already had found this out or not but I don't believe so because I have been scrounging the forums looking for an answer my self.
So a lot of people may know that voice chat in the game is broken for like half the people who play with no answers as to why and the devs gave a fix that doesn't work for 50% of the people including me.
I am using a Steel Series Siberia 150 gaming headset which is USB not a Line In style headset. After multiple attempts to get my 150 to work I took my older Steel series headset out which WAS a Line In style headset with both a headset and microphone plug and the chat worked 100% fine. I tested this by going back and forth between both headsets and the Line In never gave me issues, my 150 had the latest drivers installed also.
I believe the game doesn't support or work with USB style headsets for whatever reason beats me but this should be fixed ASAP. I hope this helps a lot of people if you have a USB headset you're probably gonna have to wait this out. Hope this helps.