Shouldn't this be in the Painting & Modelling section since we are not discussing rules here but only the models? Shall I move it?
At first I too wanted to use the old Citadel Ninjas as models and I actually bought around 15 of them. Then GW released the Flagellants I went that way... However, choosing Ninjas seems like a cool idea. However, I don't like to call it Nippon, because Nippon is far far away from Cathay (at least from where we're playing) and even in the Border Town Burning setting, the Northern/Western borders of Cathay, Nippon still is far away and a Nippon
warband really doesn't fit there. So I wouldn't use the term "Nippon" in the
warband - but I can be a bitch when it comes to background, so this may not be relevant to you. A proper Battle Monks
warband fits the BTB setting, but a Nippon
warband, well, they don't even have a setting. But that really depends on your fellow gamers.
Speaking of them: If you are building a
warband that you want to pit against players that you don't even know yet, then the safest thing to do is to make an official
warband (from the rulebook, the Empire in Flames or the Annual). Building an unofficial
warband always comes with the risk of experiencing resistance. However, if you really don't know when or even if you will get to play with the models, then it's all about the hobby aspect and then you should definately make the
warband that you like best from the models/background/style/fluff. Of course, you will always be welcome with this
warband at any Boring Mordheim Meeting(R)!