In Ro1 I would instinctively duck for cover whenever bullets started whizzing by me. The sound was powerful and would overpower any other sounds, while in RO2...well its enough to say that i only know I am actually under fire because of the white flashes on the screen.
So I think that the frequency and the volume of whizzing sounds should be increased.
So I think that the frequency and the volume of whizzing sounds should be increased.