Military doctor (infantry battalion training): A certain number of lost troops can be recovered at random, as well as traps, watchtowers and city walls, but the number recovered depends on the number of military doctors and scientific and technological "drugs".

Tram (cavalry battalion training): If the predator wins, it can plunder resources. The amount of plunder depends on the number of wagons compiled by the plunderer, the current inventory of the plundered party, the number of armories and the reputation difference between the two sides.

Recovery Team (cavalry battalion training): The loss of troops can be converted into resource recovery in proportion, and the amount of recovery depends on the number of recovery teams incorporated.

Siege weapon (organ room training): it has greater bonus damage to the defensive buildings of the plundered party.