could only hear background audio, all other audio was extremely low

All audio except for the soundtrack is muffled when in mission then goes back to normal after a new stage is entered

the sound stopped working after i joined a mission but started again when i progressed to the next level

i lost all audo that came from walking, running, firing and reloading my gun, all cooper audio, and only could hear mission things such as when i interacted with a scanner or ect, also copuldnt hea...

During first level on mission some sounds didn'y play like attacking and shooting, enemy sounds and other player sounds. Fixed it self after taking elevator.