This has been requested several times before. There is no need for it since everyone can exit flight and be back in the tower. I realize it might be fun for some people but you can't pick people up. You can't join someone unless you're in the tower.
Scenarios already have a procedure for rescuing pilots where you exit to the tower when the rescue vehicle is close enough to count.
First, I am aware that it was posted before. I posted to it previously and did a search before posting. Rather than bump an older thread, it's possible we have the capability to code this into Aces High now.
While true, exit to the tower is an option...but let's think out of the box for a moment...a wounded pilot gets medical treatment and lives.....maybe instead of a ditch it's a successful landing....does it then have value? I am not limiting the result of being rescued-it can be made valuable to folks!
Some noobs-like me

, might need to "farm" a few perks in order to buy apanther, tiger, or 234...or B-29. M3's and PTs would likely become Vehicle perks, C47's, PBY's, would be scored as bomber perks. (if a PBY is added) Actually, I have loads of perks....but you get my point, I hope.
As far as Scenario rescues, the CM has to approve it and it's less complicated-agreed, but might be a second life opportunity for folks when they lose their first (or second) in their primary ride. Like being a gunner. It might give folks a reason to stay and assist their side. The "what if's" are many. We only need to think of how it would be best served for the community and the game.