I wonder if Warhorse considers implementing gunpowder weapons. They started appearing in Europe in late 14th century, so they could potentially have been employed in an early 15th century army. I think handheld gunpowder weapons came a bit later (roughly at the beginning of the hussite wars) and were very unreliable and actually less powerful than bows at the time (their advantage was that to train a soldier to point a gun at a target was far easier than to train him to use bows and also it made a lot of smoke and noise which had a psychological effect and could scare horsesâŠand even soldiers), but primitive cannons were not all that uncommon at the time. That said, I donât like gunpowder weapons in a medieval settings very muchâŠI feel like they are sort of heralds of the end of the middle ages (and that is true in a way). But perhaps one or two cannons in one battle could make an interesting twist.
EDIT: So Wikipedia says âThe earliest surviving firearm in Europe has been found from OtepÀÀ, Estonia and it dates to at least 1396.â (http://en.wikipedia.org/wiki/History_of_the_firearm#Firearms_in_Europe) So even handheld firearms would have been possible (if very scarce)