P3:
While there are problems with the human interpretation of the AI (trust me DCS is a lot worse wrt AI).. TDs IL2 AI (v412) is.. repeat,
IS the best I've seen for a long time. AI long term tactics, I'm sure are still a problem.. but QMB seems to suffice in this regard.
What a lot of people seems to forget, is that the 'relative performances' of the IL2 aircraft seem to reasonably accurate - and there are a lot of aircraft. An aircraft's specific RL performance might not be up-to-scratch.. but for online WW2 'jousting', it is the best so far - even for a 13 year old engine.
What it always comes down to.. is knowing your a/c, whether it's IL2/DCS or RL, and the limits you can push it too.