If unit training priority is moddable then I expect some very challenging AI will be attainable through mods. The one time in opendev that I ran up against 30-40 muskets and dragoons did not end up well for me. Sure the player can overcome swarms of pre-gunner units (and I think that will always be part of the fun of beating a heavily advantaged AI) but once you start trading shots with gunners, the AI behavior feels far more optimal. As I see it, the only problem now is that starting in medieval, the AI won’t train half the units the player does and they fail to upgrade to partisans which could actually defend their cities.
