Been playing about 1.5 years, but my alliance experience is only about two months of that time. I have two of every aircraft from Hawk to Condor, and on Sundays I ensure that I have one Swift and three Owls in the fleet so two of my three requirements will be based on Swift and Owl. Having more Owls was great a couple weeks ago when I had Cape Canaveral as a destination as it has no item required for flight, and I got a lot of launch items. This week, I got Malta for a destination for 300 flights--not so good since it requires the Powerful Radio Transmitter, and now I'm making 150+ trips to Goa to get that item (also getting from gifts and Lake Baikal, very rarely).
That said, what will happen if drop one Owl, and add one Swift? I will then have two of all aircraft. I assume the Swift missions will be retained, but would that give me twice as many of those? If all aircraft numbers are equal, how is the "highest number of aircraft type" determined for one of the three alliance missions? I'm concerned it would randomly pick any, and I would be faced with 50+ Condor missions with only two aircraft.
That said, what will happen if drop one Owl, and add one Swift? I will then have two of all aircraft. I assume the Swift missions will be retained, but would that give me twice as many of those? If all aircraft numbers are equal, how is the "highest number of aircraft type" determined for one of the three alliance missions? I'm concerned it would randomly pick any, and I would be faced with 50+ Condor missions with only two aircraft.