Samurai Warriors: XL - Yukimura's Tale 1 - The Battle of Kawanakajima

Start of my SW1 playthrough. This is the first game to implement the mission system where you get an objective and try to fulfill it across the battle. A lot of them aren't required though and if you can keep morale up your army can still go through the enemy with relative ease. Yukimura is pretty much the hero of this battle as Kenshin will start to retreat once you've fulfilled the objectives. I don't remember if he'll actually retreat but he seems to give you plenty of time to go after and fight him.