The problem is that you dont provide what is your criteria for comparing units. One day you talk about 40 conqs vs 40 mayan arbs or plumes and the next day you talk 40 war elephant vs 30 camel + 40 jani.If we take the same semblance of reality, 60 plumes/eew vs 40 conqs isnt unrealistic either.
Yeah and conqs win that fight. At least vs the plumes they do. PLumes just do such little damage per shot to conqs.
And 60 plumes should just about win vs 40 elite conqs, and this is a huge waste for spanish guy. In reality plum numbers are likely to be twice that of conqs' and then its not even worth discussion.