I finally managed this in BS2 having done so a few times in the first Black Shark.
I made some bad mistakes, including one involving getting hit by a TOW. I wasted my wingmen (well 2 of them) on the enemy helo's. I also got a very entertaining A2A kill.
Later I forgot all my emergency procedures, like what to do if your gear won't extend, and that I should set full power with only one engine. I'm not sure that I could have made it back over those mountains on one engine and no autopilot systems at all. I just flew a little way away from the engagement zone and set her gently down next to a road. Possibly the best landing I've done really. Here's a track and a screenshot. I have not reviewed the track to ensure it plays back correctly.
Oh, I couldn't upload the track. I think it might be too big. It's not exactly a short mission, but I love it :D