4) is not entirely correct. i just read the JG26 diary and there the matter is discussed.
My bad. Thanks for the clarification. I was working from memory. I recalled that the system for counting U.S. heavies was slightly different than for other planes, but obviously not the exact details.
then there was the "Herausschuss", forcing a heavy out of formation. this was counted sperately and usually in scoring lists is marked with "HSS". There was a back and forth if this was counted as a full kill or not.
I'd be surprised if many German pilots stuck around to find out if they shot a bomber out of formation, with the skies filled with lead from the other bombers in the formation and P-51s and P-47s always on the prowl. It would be easier to notice a bomber in flames, falling uncontrollably, with crew bailing out. Presumably, night fighter pilots didn't get the same deal for "HSS" and Abschuss, since British bombers didn't fly in formation, so their defensive fire was much less dangerous. Anyhow, in my hypothetical "multiple scoring systems" mod, you could count "Herasschuss" for inflicting heavy damage on a 4-engined bomber.
Oh, yeah. For maximum realism there should be a delay before your kills are actually credited when using systems 3 and 4. Time for kills to be registered can vary from a few days to a few decades. (In the latter case, some smartass forensic archaeologist who digs the remains of your unawarded victory out of a swamp, gets a serial number off a part, correlates it to a missing plane/pilot and then determines that you were the only enemy pilot in the air that day who was in the area and claimed a kill/seriously damaged a plane of that sort.)
to depict the actual thing there needs to be a feature where the player actually has to "claim" an amount of kills after each mission, like entering a number.
This is another good point. In the heat of battle, many pilots/gunners would overclaim kills and multiple pilots/gunners would claim credit for the same kill. Gunners on American heavy bombers were notorious for this. Alternately, a pilot might not realize that he got a kill and just claim a "damaged" or a "probable."
In the sim, sometimes I lose track of how many planes I've killed or don't realize that I've killed an opponent during a head-on pass or fast high side attack. I'm sure it was like that in real life as well.
So, for even more realism, you could have pilots seriously overclaiming kills, including disputes over who killed what. Who gets credit, and how much, depends on which scoring system you're using.
Anyhow, I think we can all agree that the current scoring system isn't perfect, but to fix it would require a seriously talented Java coder with an obsession for WW2 aviation history and way too much time on his hands.