River/bridge maps?

[Forward Observer]

I've always had sort of a love/hate relationship with bridge battles. They have usually been kind of an exploit for the single player in most TW games---especially in Napoleon. In that game all one needed were 2 cannon units placed at each of the two crossings (usually a bridge and a shallows) flanked by infantry and the enemy would just march right in to--and be decimated by--loads of canister and small arms fire. One is always on the defense in Napoleon and Empire if they have superior artillery--which I always tended to have.

In Medieval 2, I got tons of kills at bridges with my ballistae.

The only TW game I can remember where the enemy AI units were able to contend with bridge battles in a halfway intelligent fashion was the first Shogun. (maybe Medieval 1 also, but it's been a long time since I played it)

If Shogie 1, if the enemy was on defense, (they always were in my games since I played very aggressively in the first Shogun) one was going to have to have have a numerically superior army with lots of Ashigaru to dash back and forth on the bridge as bait and loads of archers lining the bank to pelt any enemy that got in range. The goal was to run the enemy missile troops out of arrows while you still had fresh archers in reserve. Then one ended up with a big bunched up mêlée battle in the middle of the bridge while you were able to still rain arrow down on the enemy until their weakened units would break.

Those still tended to be a chore, but one had to contend with them since any province that contained a river automatically meant a bridge fight. Consequently, I'm really interested to see how a bridge battle in Shogun 2 plays out.