Following in the footsteps here of drPhibes, I've worked up this modified beacon.lua file for the Caucasus map. Credit to him for figuring this out and sharing the method, I've done no more than copy his method
This adds ICLS channels to all the airports that previously had an ILS or a PRMG approach with glideslope, and adds TACANs to those airports as well. Anapa and Gelendzhik also received TACANs.
I expect this won't pass the IC. I have tested this on my system with no issues, but make sure you back up your original lua file before trying this out. Updates will write over this file.
I ran approaches to all the airports to check them, but I may have missed something. Let me know if there are any issues or errors.
Tony
Now available through GitHub https://github.com/madmoney99/DCS-Beacon-and-ICLS-Mod