I fully approve of the suggestion; it would be a true breakthrough toward immersive and realistic communication. I’d add that, besides ground vehicles, given the direction DCS is taking with the C-130J (especially the KC-Tanker version when it’s released), why not consider AWACS modules? This would allow those who enjoy flying "airliners" to be part of operational scenarios with much more interaction than a simple commercial flight. Additionally, in a multycrew setup, having an onboard interface would provide aerial coverage for all fellow players. We'll see...