Start with an airport
Map Theme:
https://steamcommunity.com/sharedfiles/filedetails/?id=1447046893&searchtext=
Passenger and cargo planes will take off and land at this airport.
My MOD list:
https://steamcommunity.com/sharedfiles/filedetails/?id=870700093
This map use R69&REV0’S railway:
https://steamcommunity.com/sharedfiles/filedetails/?id=1569088356
My airport assets list:
https://steamcommunity.com/sharedfiles/filedetails/?id=899775385
Walls:
https://steamcommunity.com/sharedfiles/filedetails/?id=1373980897
https://steamcommunity.com/sharedfiles/filedetails/?id=1276334651
And you can use Loading Screen MOD to see which assets are missing
https://steamcommunity.com/sharedfiles/filedetails/?id=667342976