No audio once loaded into the game (STEAM)

Games Halo: The Master Chief Collection
1

There is music and audio on the main menus but as soon as I load into a game there is 0 audio what-so-ever. I dont know how to fix (STEAM VERSION)

2

submit a ticket, that’s what I’ve done
https://support.halowaypoint.com/hc/en-us/requests/new