I agree, going in the main gate with a ram should be a very, very costly procedure, where as it's currently the preferred method, assuming it can be accomplished. I also wish they had included the castle 'improvements' that existed in MTW, such as the ability to add on a barbican. It would be nice if there were a whole slew of possible upgrades for the castle settlements, beyond the current "castle," "fortress," "citadel" levels. Thicker walls, more towers, round towers (vs. square), moat (wet or dry), fortified gatehouse, etc.