I would really like a rescue feature, where when a friendly player has landed close to you you get a little rescue button and can click it, then you join his plane.
When he gets a landed successfully you get a got rescued or so in the logs. Would really help for scenarios.
And do away with the land and take off everywhere crap.
Have paved, grass, rough and bumpy surfaces. When you land on bumpy you kill your wheels and cant take off again.
When you land on rough you need to touch down verry slow in order to take off again, like below 50mph. Otherwise tries blown.
That way rescue aircraft make sense, capable of landing slow and taking off again with a short take off strip.