This is a hard question to answer generally, because the organization of European armies in the later 15th century actually differs quite a bit. The Swiss Cantons field different sorts of troops and organize them in a different way than the Italian city states, who organize their troops differently than the Burgundians, who are in turn quite distinct form the English. Did you have a particular nation in mind?

I talk about the types of soldiers fielded by the English armies of the Wars of the Roses themselves and what their equipment was like here.