Devs could you explain SYMBOLS OF INFANTERY on a tutorial? or

could you please make a infography explaining this simbols, its so confusing

image this give bonus to all infantery EXCEPT chimus and coyotes, right? then why the name is “INFANTERY” its so confusing INFANTERY includes all kinds o infantery. Change this name please.

Also make a chart inside game info about units included on this kind of infantery: image

PLEASE put symbols here to easily know what kind on infatery it is image

most of player that i ask dont know that spanish lancer dont has 3x bonus versus chimus and coyotes.
Some people think i was included, that hebeldier dealed 1.5x damage to skirmishers, but they only have 1.5x versus chimus and coyote runners.