Well, at least the fort battles (when the player is defending) are as retarted as they ever were. The AI is still blindly determined to take the "magic flag" regardless of the odds (near the flag)... Basically, forts are a big mouse traps for the AI with the "magic flag" serving the function of a big piece of cheese...

As to the walls: they're as useless as they were before. The cannons cannot hit anything despite starting to shoot at longer distances. So, the player has to resort to the "mouse trap" tactics on the ground level.