this might sound an odd question but i think it slightly makes sense to me
how are the units clans going to stand out from one another ? will each clan have there own unique talents and ability's ?
how is a samurai from the Oda clan going to differ from the Shimazu clan, till the Takeda Clan be able to have better mounted samurai from the rest
and will religion make a difference will a christian samurai be different to a Shinto samurai