The one item not added but desperately needed - nerfing air forces.
It needs a three slash, something like 10/6/4.
10 if your tactic uses all age 3 techs, 7 if the lowest military within the tactic is 2, and 4 if it is 2 or 1.
Too many age 2 armies or even age 1 classical army using air forces, which super-buffs military and is not historical.
