it is at all airlines the same , if you need help , then come to discord , there we can talk better

If you have a UFO plane or a MIA or missing mods : Please Check if you have subscribed the needed Aircraft Mod for your airline. (but be exact the same or you have a UFO plane). also a steam bug it can be, then please unsubscribe and subscribe the needed aircraft mod again(that is a loading bug).and then download missing mods.(in game) Then it should work.

I am getting an unknown Aircraft flag on my mods page in game when I load up my save. I have downloaded all the required games on the right.