[Tempest123]

Overall I find 4.12.1 to be a big improvement in terms of evasive maneuvers, nice turns, half rolls, loops etc. Still there is a tendency to do an occasional vertical climb followed by a stall when being chased, which of course usually results in the stalling aircraft being shot down.
There is still the issue of the AI being unable to recognize the need to boom and zoom, for example the Karelian Hawks campaign, the p-36 can run away from the i-153 all day with an altitude advantage, but the AI insists on turn fighting, so your going to lose your whole AI flight once and a while trying to dogfight. I've think i've lost more AI P-36's than Finland even had in the war lol.
The last thing that is improved but still occurs occasionally is AI planes defying physics, pulling 9g's no blacking out, no fatigue, while you're snapping your airframe trying to pull with them, or pulling negative g outside horizontal turns or loops, which would of course be impossible except if we where flying su-31's or something. The AI still posess their "radar" and can tell friend or foe from kilometers away.
I don't know how much more AI tweaking is possible in a 13 year old game engine, but it is better than before