When you pull enough G's to begin to black out, I think the audio should be reduced as well - all audio, including vox.
The tunnel vision effect is awesome, but isn't it true that your hearing dims as well when you are on the edge of a blackout? I think the sound of heavy labored breathing would also be effective here - I've seen this in YouTube videos of other flight sims (DCS maybe? Or Battle of Stalingrad?) and the labored breathing fits sound fits well with the darkened vision.
Also, I've noticed the flapping flags in town or on base don't have an associated sound with them. I think the parachute opening sound could just be looped here and it would fit nicely be very effective.
Finally, when a flag changes state from normal to white - does it just instantly change? We may have enough players camped near the flags at times like this to make it worth a flag lowering and raising animation, and that would be a nice touch.
You guys are doing a great job with sounds. I just bailed out offline and spent some time walking around listening to the birds singing, wind in the trees, distant dogs barking. It's all very well done and pretty cool. And when online, hearing other plane engines and distant explosions is very immersive. Makes me wish I could stop my vehicle just short of a ridge, exit it and walk up to the top with binoculars to scan the area for enemy vehicles.
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