Bricole: These sub-types are great Siege weapons, not so good during other battles. Their damage is very high, although they attack only once every other round. A good siege composition is 40% Swordsman and 60% Siege on offense. You might want to consider adding some range Troops however.
Assault Cart: These sub-types are much like those of the Swordsman – they die too fast. However, to reduce the loss of Swordsman when attacking use Assault Carts as shields. Swordsman are much better then Assault Carts, but they will work. They also have a high load and can be used in gathering and farm off enemies after you have destroyed their defenses.