Looking for some semi-realistic Airliners flying around the Black Sea map? This may be just what you're looking for!
This mission file includes a Moose Random Air Traffic (RAT) script for routes and airlines found in the real world. Timetables are of course a step too far with DCS, but the script can run indefinitely, spawning enough airliners and general aviation traffic to make the sky a little more alive, but not enough to bring your mission to its knees.
All aircraft are invisible to the AI so as not to interfere with your mission or result in thousands of AWACS calls, and have a little randomization built into them so you don't get exactly the same airliners in the same place in every mission.
This mission file is designed to be used as a foundation for you to build your missions upon and relies on the trigger zones in the mission. But, you can, of course, replicate the trigger zones and AI airliners in your own mission, and add the script from this mission if you know what you're doing.
The script references several skins not included in the stock Civil Airliners Mod, they're listed here for your reference;
Struts Civi Airline Skins: https://www.digitalcombatsimulator.com/en/files/3306626/?sphrase_id=21418058
Aeroflot skin for the Yak-52: https://www.digitalcombatsimulator.com/en/files/3306198/
North American Oldies for the Yak-52: https://www.digitalcombatsimulator.com/en/files/3303150/
Weathered Liveries Pack 1 for the Yak-52: https://www.digitalcombatsimulator.com/en/files/3303077/