Hey, come on let's agree that all Armies or factions should have atleast some form of Infantry and Cavalry, just for the fun factor and the balance factor. Sure Nords may not have the best horses, but hell they got the tuff infantry. Then you got swadia, which is generally Heavy everything (cavalry and infantry). Khergits have fast horse basically ride around fast and turning your enemy into a pin cushin on the move while they chase after you but they will never catch up due to superior speed. So this is where archers/crossbowmen comes into play, shoot those Mounted Archers down! They maybe hard to hit, but so are you. Their horse has a high silhouette giving them the hit me sign. When they fire on the move it's inaccurate so you have to play it smart, the infantry in the Khergits should be a lightly armor footman with a sword and shield maybe a 2H weapon to give him oomph, with good melee, agile and athletic overall hes a smart playing fencer like character.