I’ve got a decent artillery section with Sky Rockets, and some decent archers (Bushi Samurai and Ninja skirmishers), but I like the idea of driving towards close in combat, similar to Norse, with Ronin Samurai fighting as berserkers to restore their honour by dying in battle, Bushi having to charge any enemy present, with Samurai strategies focussed on the distraction of enemy with skirmishers and monstrous units (lvl 1 dragons and a giant serve the purpose) on the frontline, Ashigaru holding the defensive line as the samurai units follow behind the forward units.
Having Bushi Samurai ‘hate’ all enemy means they have to shoot every turn they are in range, and charge any enemy in range. While they get a bonus ‘to hit’ in combat and +1 to rout tests, they are somewhat autonomous, almost impossible to hide, and prone to charging into ambushes. They also commit suicide if routed, removing any chance of recovery after a disastrous melee.
A samurai general must trust the nature of his/her troops to get them through, in a way that others do not.
That is the way of the Samurai!