You might want to narrow down your question. Asking about military tactics about all non-European people, is too big of a question. If someone does not give a specific answer, try narrowing it down geographically.

To narrow the topic, how did Japanese use of firearms during the civil war period (as popularly depicted in the Shogun: Total War games) differ from their European contemporaries?

I read somewhere that Japanese arms in this period were technologically superior to the European state of the art. Is this true? If so, what made them different and how did this affect battlefield tactics?