I've been testing this mod for a while and I've not seen the enemy use the standard Northern European shield wall way of fighting even once. I mean, for me it's not really a game breaker as I don't give much of a care about Vikings, Saxons and all that. But I downloaded the mod for my father and he is a total saxon nut. Quite frankly, without the shield wall warfare there's no point me keeping the mod installed.
So I'm asking this basically. Is there a way I myself can modify the AI use of shield walls into the game?