Hidden airports, although pretty fun to find, are.... pretty much useless
, they just act as a funny little easter-egg, i propose a couple changes to this idea
1: Airport recon jobs
a special, orange or blue rarity job, which will ONLY appear in air force bases, and only doable with recon aircraft, like surveillance, you will need to fly to a location, however, it will be unmarked on the map and instead you'll have a distance from airport metric, much like SaR, once you are above the airport, at a relatively low altitude (around... 2.5km maybe?) the job will be considered complete and you will receive a BIG reward
2: Mark found airports on the map
When doing a recon job or finding airports on your own, you will mark the airport on the map with a small gray question mark both in the symbol and the airport's name (for example, ???) once you successfully flown over the airport, this question mark will disappear and will be replaced by the regular airport's name and symbol (heliport, regional, afb etc etc) once you have ENDED FLIGHT in the location, and it will be on your map forever



