I know it’s been a while since you posted this, but I have been toying with the idea of increasing air-to-air combat in a way that is very similar to what you have presented here.
I think the A2 D2-3 C6 Fighter is a very interesting idea. Having them target other air units before anything else is a simple and effective way to simulate that air-to-air combat. I also like how the combat values would now be the same in SBR (makes things simple).
I also really like how you altered Tactical Bombers to be A2-4 D3 C8. The two attack bonuses really give meaning to the importance to air supremacy.
I am curious to know how these two units have worked for you.
It evolves into this roster:
Baron’s HR units charts and set-up for 1941, 1942.2 and AA50
The main reason is because of too many combined arms and bonus for TcBs and Fgs.
Makes for longer combat round and more details to consider to get the correct bonus per combat round.
Since the point was about hitting directly other planes, I simplified the TcB special ability.
That way, combined arms is now reserved to ground units.
So, it is easier to focus on what is specific to Fg and TcB.
I always start combat rounds with preemptive AAA, then these two units (when present) fire, then all other units.