Military training pretended to faint. Can the instructor tell?

A military instructor who pretends to faint can't see it, because the first time you faint, the instructor's first thought is to take you to the hospital, not to see if you pretend to faint, but to care about your health and nothing else, so a military instructor who pretends to faint can't see it, but don't do it, because military training is the only way for every student to enhance their ability to bear hardships and stand hard work. Pretending to faint is not the way to escape all this, but to face it bravely.