Samurai Warriors 2:XL - Nobunaga's Tale 1 - Battle of Nagashino (360)

Nagashino is actually a bit harder than you'd expect due to the Takeda having high morale when they charge as Katsuyori tries to retreat. When he begins retreating, Katsuyori will ignore you entirely until Hanzo appears.

Nobunaga is a bit unorthodox with his moveset. When his special attacks are leveled he gains his SW1 moveset while he has his sword buffed by 3 levels. His attacks are basic, but he has shockwaves he can take advantage of. XL adds his C5 attack which deals tons of damage, buffs him to gain his full moveset, and increases attack speed. So once you get that he immediately becomes more effective. You can also buff his defense, but there's not much reason to given how long it takes and how fast it wears off.