I was bored and jumped in on this frame. Literally the first Special event thing I ever did and it was awesome! I ended up getting 6 assists. SIX!
Oh well, I got 2 kills as well. 
Were you flying for the RAF? I've noticed the number of assists on our side has been very high - .303s mean a lot of people are likely to put lead in a Hun before he goes down. I'm guessing the same is true for the bomber gunners.
Loads of fun, though, and I wouldn't trade my beautiful Spit for a clunky old 109E for all the 20mms in the war.