Sometimes younger, war-time Christian has good days.
Other days, he flips Messerschmitts down hills.
I think this serves as an alternate explanation to "our mom dropped him on his head as a child."
Hope this is clear enough, I went sketchy because I didn't care enough to pour myself into detailing.
Fiorentino's last flight during the war. Would like to write this story out. Gets shot out of the sky essentially and isn't about to try and land the plane amongst trees. Attempts to bail but cockpit is jammed shut. Ends up not having a pleasant time and life gets more complicated when he wakes up, bleeding, upside down, to a couple of Americans assessing his catastrophe. Gets a little bullet happy. More chaos descends.