Moldova didn't really have special troops, much like every other country, however take a look at these pictures.
Stefan cel Mare (Stefan the Great) was our great leader our biggest hero during 1454-1504. I hope the time fits you, the second half of the 15th century. You should definitely use him, we even have his monument in our Capital's centre.
Edit: He also build a church for every win he achieved in battles.
Edit: These were Moldovan shields, no special troops as usual spear-men, archers, swordsmen or mace-men, Moldova also had trebuchets, catapults and other assault weaponry from abroad. That's pretty much it, you can see that warrior were not dressed very good, usually body-armor was used by kings.