EuroAirport serves both Basel, Mulhouse and Freiburg, its directly on the French-Swiss boarder and is unqiue as its operation is shared by both countries. Administer both by France and Switzerland. Swiss Airlines for example historical dominated the airport and i think it'd work better for the R worlds to have it be like .
What this means is that a airline based in this airport or a airline based in France of Switzerland would have the right to operate out of the airport without restrictions due to the way the airport has and continues to be administered legally. In other words it owned and operated by both Switzerland and France, and is located on both countries so i think the game should reflect this
https://en.wikipedia...lhouse_Freiburg