I was flying behind a Stuka and the rear gunner shot up my engine (right before I downed him) and caused my canopy to turn black, I could only see out of the upper right side, I couldn't even see through my sights. Then I got into a chase with a 109, this went on for roughly 3 minutes until he dove down to the water and I crashed because I couldn't see the water.
It was so cool. That was the funnest chase I have had yet while playing the demo.