These battles all share a common characteristic, intensity. In a very short time, in very specific battles, there are too many unpredictable elements, making it hard to control all battles from a commanding perspective.
Therefore, casualties appearing in class battles is a very normal thing. What a Commander needs to do is to instruct soldiers on how to fight. In most low-level matches, as long as mistakes are not made, one can win the battle. However, that doesn't mean there will be no casualties at all!
Being unable to achieve a zero-casualty victory against the computer has become a consensus among all players entering this game.
Decades ago, experiments were conducted, and once it was understood that the more the utilization conditions are, the stronger the computer is, no one challenged the zero-casualty objective again.
