Khergits : Calvary/horse archers
Swadians : Calvary/crossbows
Vaigeirs : Archers/infantry/calvary
Rhodhoks : Spears/crossbows
Nords : Throwers/archers/infantry
(New Faction) : Throwers/calvary/spears
The two rarest types of troops are throwers and spearmen. The Vaigiers only have a little bit of calvary, and the Swadians have excellent calvary. The Khergits mainly stick to horse archery and the Nords are the only throwers. The new faction could have calvary like the Swadians, throwers like the Nords, and Spearmen like the Rhodhoks. But they wouldn't be royal-armored, like the Swadians. I don't know about a 'small faction' but perhaps an equal sized one and a larger map. In a new area, a very mountainous area, this faction could reside. The faction would have lancers, mounted throwers, and an infantry of thrower/spearmen. If the faction sounds a little to powerful, then the faction could be low on shields and only the best of troops would have them. Anyway, I think a new faction would be a good idea.