Make AI hear noises when watching through camera, but there need to be a mounted station intercom in the same room or near it to hear the noises, its kinda boring to almost hear nothing every round.
I kinda like not being able to hear, because when you DO hear something you know something is wrong.
Being able to hear as Ai makes little sense with it observing the staion through cams. If you wanna spy on evryone, turn intercom mics on and set them to ai private.
I always put on music or youtube videos when i play AI.