In fact, in ancient times, the most taboo for soldiers was to be deserters. These soldiers were fully prepared before they went to war. In their minds, only when they die in battle, they will never be deserters, let alone soldiers who play dead. In ancient times, soldiers ignored life and death. In their view, loyalty to the monarch is the most important thing. It is their mission to obey orders and commands.
So for those soldiers on the battlefield, bravely fighting forward is the only thing they need to do. Because behind them, there are families who need their protection, as well as monarchs and ordinary people who need their protection. Moreover, if you become a deserter and a soldier who plays dead, once found, the punishment may be even more cruel than dying in battle.
For them, being a deserter is a very shameful thing, which will not only shame themselves, but also shame their families. When the horn of war blows, they need to twist into a rope and run forward. If everyone runs forward with enthusiasm, the horn of victory may come.
But if everyone thinks about how to escape and how to pretend to be dead, then what awaits them must be failure, and if they fail, they will inevitably become prisoners of the enemy. In that case, you might as well be brave.