They can effectively exert their abilities in the fortress and industrial period,
However, after the treaty and the Empire, the enemy and our forces are the largest. When the war begins, they line up too slowly. Their large size makes the front row generally block the rear row. The front row can’t play a big threat. They have to wait for the rear row to spread to both sides. This will take a lot of time. We have to send more soldiers to protect them
It is suggested to increase the speed by 0.3 when upgrading the Empire, which is in line with the balance of the treatybalance of the treaty