Do you think the AI will attack and keep attacking, if you give an attack vector to a couple of poorly equipped/trained GER Inf Divs to attack a heavily defended Maginot Line? Will a dumb AI bleed you white sustaining horrendous casualties trying to reach an unobtainable objective?
The AI controlled formations in HOI3 didn't.
If four Divs in two provinces are assigned an attack vector with a one province wide objective, will all of the Divs move into a single province, and advance leaving a gap in the line, allowing the enemy to get behind you and cut-off supply?
The AI controlled formations in HOI3 didn't. They always tried to maintain a front.
If a front of 12 provinces, given a Schwerpunkt order, will units on the flanks advance if they see a gap in the enemy line that they can exploit? In HOI3 they would.