When in an environment where lots of noise is going on, such as full auto, sound stops working completely. Restarting game does not fix, all audio broken until restart of computer. Had some crashes relating to xaudio2_7.dll and found this article about similar issues; http://blogs.msdn.com/b/chuckw/archive/2015/10/09/known-issues-xaudio-2-7.aspx

With steps on how developers can fix issue.

I have been able to work around by moving/renaming the Xaudio2_7.dll so that it is not used, but this breaks audio in other games like Fallout 4. Guess I could work up a Batch file to swap the file in and out but would like to see a real fix. Using Motherboard audio, which passes Windows10 compatibility check.