In ancient times, many small soldiers fought and killed the enemy because their families were poor, and ordinary soldiers had no better choice. They can only kill the enemy bravely, and there is a mountain of military pressure in the ancient army. If they flee the battlefield and are treated as deserters, the end will be even worse.
In ancient wars, after the rehearsal of the army and the command of the general, the operational policy will be more rigorous and organized. Every soldier has different responsibilities, so he has to March in different rows. If the war is like a loose sand, then the war will surely end in failure. The vanguard also plays a great role, and whoever can persist to the end will get more honors and rewards. Under the heavy money, there must be brave people. Not only to survive in the war, but also for family honor.
What we saw on the TV series may be for that huge scene. In other words, in order to highlight the hero SHEN WOO's bravery, the little soldiers behaved very loosely. If we really face the battlefield, everyone is fighting for the victory of the war or for their own survival. It is impossible to fight like gangsters. It's more about fighting with real swords and guns. After strict training, the army is definitely different from young and dangerous people.