No conspiracy theory here, but is it possible that something changed with the new version of AH?  I get a lot more assists on aircraft that show no visible dammage, and forget hitting the fuselage of a bomber instead of the engines or wings, even with 7-8 shells.  The Mk 108 seemed a little weak before, but now it is worse. 

Sometimes it works in my favor.  A very good K-4 pilot caused me to overshoot the other day, and popped me with the 30mm, but only my engine died.  No fire, no other dammage.  I was able to glide away for a ditch and rob him of his kill. 

Programmers who play this game have said that it is very easy to change something by accident... I would appreciate it if this were looked into.