About the builds, let's take a look at your cavalry build:
Bascinet is outdated - Coventry Sallet or Armet is your answer. Lose the shield, and the spear is horrible too.
First infantry build is really weird. The ones that have a place at the time are the archer and the second infantry build. But those varied too. For example, you could see an archer with much better protection, etc.
Another thing is that dividing the builds into infantry, cavalry, archers, etc. isn't the best way. You could have, let's say, men-at-arms, archers and hobelars. Something along these lines, meaning that hobelars could ride horses and men-at-arms could fight on foot.
