Wotan,
I agree with most of your suggestions except about making the buffs tougher and adding AI gunners.
Here's why:
I've read that the Luftwaffe estimated the average 4-engine buff took 20, 20mm rounds to shoot down. That's an average. A few only took 5 or 10. Others took 30 or 40. Some took a couple dozen hits or so and limped home. This compares to my experience attacking buffs with 20mm in AH.
Those of you who think a buff couldn't take 40 (or more), 20mm hits should remember the B-17s and B-24s which took direct hits from an 88mm round and still came home.
The Luftwaffe also estimated that it took 3 "well-placed" 30mm rounds to bring down a 4-engine bomber.
If I've noticed one place that might be a bit too fragile for buffs, it's their wingtips. Several times a couple of 30mm hits have taken off the wingtip and made the pilot lose control. Since wingtips are hollow, wouldn't there just be some big holes rather than a catastrophic failure of the outer wing? Maybe I got lucky and hit the leading edge spar or something.
Also>>>Hazed...it's not true that the only was to explode buffs is with a pilot kill. A couple of days ago, flying a Me-262 I made an attack on a formation of 3 Lancs from 8 o'clock level. I splattered the number 2 & 3 buffs with many 30mm hits along the fuselage, but didn't hit near the cockpits. As I looked back, both exploded! The unlucky remaining Lanc took a quite a bit longer to bring down, with just a couple of pings to the outer wing causing the entire wing to come off and the Lanc to catch fire. More evidence the wings are too fragile?
AI Buff Gunners:
In WarBirds the accuracy "Otto", as the auto-gunner was called, was a constant source of argument and whining. I think more gun shake and dispersion will make buff gunnery a fairer contest between humans.
MRPLUTO VMF-323 ~Death Rattlers~ MAG-33