i still find that kinda hard to believe. Not after what i've experienced. It's not just one battle, it happens in all the battles. One thing is, though it may not relate, i've been keeping and eye on the "balance of power" thing. The AI always gets favoured there. Taking Rennes from France, with a half-stack of 2 ballista, 2 crossbow militia, 4 spear militia, 1 town militia and 3 sergeant spearmen (all armour upgraded and bronze chev) vs the enemy's garrison, bodyguards (31 units) and 2 crossbow mils. Balance of power shows 5:4, t i think it should be much less! i am thinking the BOP will take into account (correct me if i'm wrong) the base stats+exp and upgrades of soldiers, plus numbers and (maybe) tactical advantages. This would mean the AI gets attack bonus. this is just a speculation on my part though.
on the other hand, the stamina boost may very well be the culprit of the hour for me; it has the potential to have a good enough effect on the efficiency of soldiers. But it still doesn't explain much. like how peasants can defeat DFKs, let alone outnumbered 3 to 1. My knights were fresh, while AI's peasants, who had been battered by artillery salvos and crossbow bolts from the beginning of the battle, charged up the damned hill!
I'm all up for the "random chance" thing, where, by sheer luck and randomness, some inferior or outnumbered units may rise up to the occassion and defeat superior troops. It's what i've always been dreaming of in a strategy game. If that has been implemented here in M2, than, more respect to the creators. But it's not fun when they happen against me in all battles from the beginning of the campaign to the end. It always feels like every battle is an action movie and i'm the bad guy
i find the campaign map to be too easy on all difficulty levels (and i like to play the slow diplomatic game). My only complain is against the real-time battles.