I posted about this during the closed Beta, and again during the open Beta, and again now because... amazingly... no one has fixed this.
There's no sound during gameplay (only during main menu and cinematics) when playing with wireless Arctis 7 headphones. I have no idea if any other headphones are affected (I have no others to test) but it's not like Arctis 7 are especially rare pieces of hardware. This is super disappointing, and hopefully not an omen of things to come.
I'm having a similar issues, where mine will work at random times and the best part it will work when alt tabbed. Once i go back into the game the sound stops. i have tried windowed, windowed no boarder and full screen. using logitach G933 wireless
https://pastebin.com/aMZ3VQWT
I normally hate doing "me too" type posts. But this is beyond aggravating. I am also experiencing this issue with a Logitech G533 headset. With the same behavior as mentioned in the previous post. Audio cuts out during the initial load screen while it's doing the wheel percentage load. Somewhere around 17% the audio cuts out. If I alt-tab out of the game then the audio returns.
Oddly enough, my sound worked for the first mission, the intro one where you learn the basics of the game. Once I loaded to the spot before assaulting the White House, the sound stopped. I too have a G533 headset. I will give the above suggestions a go. I did not have this issue in the last beta...kinda frustrating.