A suggestion for the beast faction, assuming beasts are not planned to mix together in armies.
I kind of like the idea that maybe some farmers are being harassed by singular beast, and it might be interesting to face a large foe that requires a full squad of men to take down as its own 1-beast-army.
I haven’t drawn a “hen” but I could kind of see them being a thing/alt-skin, with a camp/nest yielding eggs (quest-objects or trade items)
Will probably post a few more along these lines.