Cowardice, fear, courage, leadership, loyalty, honor, devotion, dedication and responsibility have no racial, religious, ethnic or sexual origins. They are the characteristics of individuals. Rank has little value in killing, being killed or in survival. Everything is basic and fundamental. Sophistication's are meaningless.
Luck is a major factor in life.
Artillery shells and other enemy fire kill at random. Surviving is as much luck as it is anything else. Rules have good and valid reasons, particularly old rules. Men's lives are dice in combat and when god throws them he frequently throws snake eyes. I wouldn't wish combat on anyone but the experience will carry you for the rest of your life.