Thanks for the replies, regarding the commander aggressiveness I still think something may have been odd for me. If they were set to guard a objective it was a small civilian one, should not be that important but who knows.

Tanks also seemed to have issues on bozcaada and a saw some get stuck in a rocky hillside and such, i have now changed to Gunkizli (great looking map), since its so flat AI should have no issues navigating.

What settings would you recommend for a large scale war with as high pace as possible on the attackers side? Filter away most minor objectives and fill the empty space using cqb perhaps? What about number of units for each side?