In re: 4 - during desert storm Lt Patrick Olson managed to bring a damaged A-10 back to base. He attempted to land, but his damaged hydraulics were insufficient and the plane cartwheeled, landing upside down resulting in pilot death. It is likely Lt Olson would have survived by ejecting near the base in a designated area, and this became SOP for that category of failure afterwards.

I also recall reading about another damaged A-10 in the same conflict that managed to touch down only to discover the brakes didn't work. Pilot overran the runway but survived. Can't recall pilot's name off the top of my head.