Since I started playing the enemy AI have always been better than the friendly AI. It's not just a DGen problem.
Sorry, I had missed that thread; thanks for the link!
About AI, maybe previously there was sort of balance between friendly poor teamwork and enemy poor marksmanship. Honestly, I think 4.11.1 friendly AI has added some bizarre behaviour, worsening its performance. For instance, I now notice that my AI mates when got a firing solution against enemy AI, instead to aim and fire with same deadly accuracy of the latter in such circumstances... starts performing an endless series of "somersault" behind its target, seldom firing and without effect, since it's really hard hitting something while continuously rolling. In addition, if player is in the vicinity, also may happen to be destroyed by midair collision with "somersaulting" mate...
BTW, I believe it is important to refer to 4.11.1
version, since I think for some reason 4.11 didn't yet introduced all potential of new enemy AI. I'm sure to have seen it still fire under its target belly, missing it, in 4.11, whilst in 4.11.1 even a rookie AI is lethal at first burst.
I think this poll could add a quantitative info to that you linked, though.