Protector of The Fields said:
The precursors to the Swadians are the Vlandians and the prescusors to the Rhodoks are the Swadians. They also seem like the most likely faction to have good spearmen/pikemen and are the only faction to have crossbows that we know of. I think Vlandians would be a much more Rhodok choice honestly
In fact Battania is the least Rhodok style faction:
they have four infantry none of these seems long polearm style
1)Clansman (they have spear but just regular spear)
2)Axeman (heavy infantry with shield, optional spear. Despite the name they have sword)
3)Falxman (naked guy with falx would demolish huskarl but sucks against archers)
4)Ulfwhatever (shieldless with big axe cut two horses in one strike)
Also they have elite archer with shield splitting axe.
I think they just don't have the culture for long polearm and board shield. They don't fear archers because they have longbow, so the axeman with the round shield is enough to protect them. Their ambush warfare means they don't need long polearm even against heavy cavalry.
The sentence that they aren't a conquering machine means they will do poorly in desert or open space against cavalry or in sieges.
About Vlandia we know they have
1)A two handed sword infantry
2)Crossbow
3)Bow
4)Heavy cavalry
That leaves the space for two rhodok infantries: one with long polearm and one with the board shield.
Now the problem is that Vlandia could have TOO many units.
For example Battania 4 infantry (1 light, 1 heavy, 2 shock), 2 ranged (hunter and Fian) not sure about cavalry
Empire has 3 infantry (2 light, 1 heavy), 2 ranged (normal and one with composite bow) and 2 cavalry (medium and super heavy)
For not being specialized on infantry Vlandia would have 4 of them: 1 light, 1 heavy (board shield), 2 shock (polearm and two handed sword)
then we can suppose they won't have the elite archer (will be replaced by the crossbowman)
and the faction will be specialized on cavalry so 2 or even 3 of them, maybe one spammable, one heavy and one specialized on couched damage
Other factions seems to lack one piece: Battania heavy cavalry, the Empire despite being all rounded lack shock infantry (maybe will have with subfaction)