The Ronin at the bridge begin to fight fiercely with samurai of Takeda Shingen.
The sounds of fighting bring out the Mouri clan troops from the houses, where they have been sheltering from the rain. The Mouri samurai are bloated from eating sushi and the archers are half drunk on rice wine. They are jammed up in the narrow lane between the houses.
I missed a few important photos here. First of all my officer Hiramoto tries to reverse the mounted samurai in the raging river. They manage to cross back to the south bank without losing any more casualties to the river but they lose two more samurai to the Shingen archers instead. Down to half strength, they are then wiped out by the first volley from the Shingen arquebus Ashgaru. Nobody seems to know what happened to General Hiramoto, it is assumed he has died honourably with his samurai BUT he is later found hiding in a toilet masquerading as a pregnant woman and taken prisoner.
The Takeda Ronin manage to cross the river on the far right flank but a unit of Mouri samurai spring from concealment in the woods, killing two and forcing the rest back into the river where they drown.
The Mouri Ronin are killed to the last man (and one woman) defending the bridge.
2 units of bloodthirsty Takeda Samurai and a fresh unit of Ashigaru are poised to attack:

But what's this??

a party of Mouri ninja spring up from out of the river and kidnap Takeda Shingen under the noses of his Samurai and whisk him away to captivity over the river. A rare bright spot in this battle for me.
Meanwhile the Warrior monks cross the river (losing casualties in the process) and are attacked by Mouri Ashigaru (sorry no photo) while they are shot in the back by the Mouri archers who finally have a clear target:

demoralized, the monks retreat back into the river where more of them drown and the remnants rout:
The Mouri Samurai who ambushed the Ronin from the woods attempt to follow up and cross the river. But this doesn't end well. Like everyone else who tries to cross this raging angry river today, they lose men and are destroyed as a fighting force.

The Mouri Samurai at the bridge rush onto it to defend it against more than twice their number.
Inevitably they are one by one hacked, stabbed and bludgeoned to death in the rain but at least they all died with honour this day.

My archers prepare to fire against the Takeda Samurai now storming the bridge but are hit by a devastating volley from the Takeda Arquebus unit, which has never failed to fire in this game. Losing half their number, the archers are forced back and there is nothing to stop the Takeda Samurai taking the bridge.

My last unit of Ashigaru run away. There is no one left.
Takeda victorious!

I look forward to the next game. Hiramoto has been ransomed back in disgrace, losing even more of his Honour. Takeda Shingen is still a prisoner. Will his clan pay the ransom, or will there be a rescue attempt?