John, there's an entire Korea server that is dedicated to lifelike realism as much as can be done at the moment in DCS. It is right up your alley. It's a player vs player only arena. An enormous amount of detail has been into it. The Server owner SeaQuark is about as passionate at getting it as true to history as you are about warbirds! And thank you. Appreciate it John!
I would love to get you in the server one day. It's an experience I've never had anywhere else. We use a tool in DCS called simple Radio, it's runs outside the sim and interacts with the radio module. It garbled your voice to sound just like a real radio, and in fact works the same way. It's based on Line if sight. So transmissions are stronger the closer to the receiver you are. If you're down in a valley you won't be able to transmit to someone on the other side. Navaid also work the same. Air raid sirens and Guard transmitted sramble alerts. You can fly, F-86, PF-51, TF-51, or MiG-15. Voice actors recorded scripted verbiage for radio calls from Ground control Daisy Station. There all kinds of ground targets and user populated NDBs. Flak, AAA at airbases, as well as soldiers on the ground. Very immersive! I'm sure you would appreciate it and love it!