Well my uncle saw the waves in Korea and he said it was terrifying but they looked just as terrified.
Hard to read faces but he said it’s like they knew they were fodder and when they dropped it meant their gun would become available for another chinese soldier to come and die.
And even in modern times, a number of Russian soldiers said they had no desire at all to go into Crimea.
But I figured Chinese soldiers are so indoctrinated from so early on to believe in whatever cause they are fed, that they would be gung ho. That might not be the case.
My uncle said the same thing when he ran into them at the Yalu in Korea in 1950. Just waves of them coming at you. A friend at church was in the Marines in Korea and talked about multi-layered defensive lines the Marines would set up and the waves just kept coming, picking up rifles of the fallen. The Marines would hold a line as long as they could and fall back, calling in artillery and airstrikes until eventually the attack fell apart.