Also there's one historical misinterpretation, in that Sanada Yukimura is amongst his army. As usual, he has his legendary rivalry with Kenshin, and is shown to be a Deadpan Snarker but at the same time a laughable Cool Old Guy who's quite the Technical Pacifist at heart (he cares more about his men's safety than his plans getting botched).
![the tiger of kai the tiger of kai](https://cdn11.bigcommerce.com/s-sqin45el/images/stencil/500x659/products/3704/65438/cm-se040p5__69041.1545246810.jpg)
While continuing the march in the spring, however, Shingen fell ill and eventually died en route (some say that he was sniped by a rifleman when he was by himself and listening to flute music being played from the enemy camp), to be succeeded by his son Katsuyori, who while a good war general, wasn't as capable a daimyo, resulting into a disastrous battle at Nagashino where Nobunaga utilized his muskets to utterly annihilate the otherwise invincible Takeda cavalry. Shingen trounced Ieyasu pretty badly at the winter battle of Mikatagahara, forcing him to retreat, but Shingen failed to kill him.
![the tiger of kai the tiger of kai](https://pbs.twimg.com/media/Dcxfke4UwAAqtrn.jpg)
He made his bid to the capital earlier than the rest, in late 1572, and the first to get in his way was none other than Tokugawa Ieyasu, currently an ally of Nobunaga. This is mostly taken from a story that supposedly took place during the fourth battle of Kawanakajima: Kenshin snuck into Shingen's camp, sword ready to kill him, but then Shingen deflected all his attacks with a nearby fan. He's noted for often being painted with a war fan.