What I've noticed is in AH2 there's very distinct sounds that help me judge my airspeed, G's, etc when flying so I can keep focused on the fight and not my instruments... in the Beta, I'm not sure why, but I don't get any of these audio queues. I've tried turning my engine sound completely down, but get none of the buffeting noises I'm used to in AH2 that let me know I may be pulling hard G's.