Hmmm... in Frame 1, I thought I had been shot down by fighter escort. When I watched the film later, I noticed that none were nearby. I had to watch that film over and over to figure it out... it was a tailwheel falling off the Mosquito that I was engaging; it came off the Mossie, hit me, and took my whole rear fuselage off. It took several viewings for me to finally see it, it happened fast.
It could be what happened to you. Did you mean that you were 180 yds behind the Bf109 or 180 yds behind your squaddie?