Not one I did, but one that's been done to me:
I was helping a squaddie test out planes he liked in the MA, and we were trading kills back and forth. He said there was a set of Lancaster's was out to hit the base I was using, so I went and chased them down in my already shot up La-7. After wasting the last 50 rounds on the Lancaster, I proceded to ram the cocpit of the lead bomber in a futile attempt to kill him. Upon dieing, it said my squaddie had shot me down. Apparently, he had upped some bombers to flatten the base I was using.