This gets rid of the sounds you hear when someone picks up something, getting detected, the objective reminders and completing a sidejob.
Just muting these sound effects actually has a big impact on the immersion of the game while on stealth
It is recommended to have no music on because it still lowers the volume and I can't do anything about it sadly. Plus it adds even more realism. 0.3
*muted suspision meter sound effect
*muted a bunch of extra lines from Bain on Ukrainian Job.