I have complete faith and support of our servicemembers, but having served as an Executive Officer and Squadron Commander I can tell you that I, or no one, wants to stand in front of an 18 year old kid (YES kid!) with a loaded weapon in a stressful situation, and expect that accidents won’t happen. If you think every order given if LAWFUL, or that they would have time to do anything but react, you are very naive.
I’ve held similar positions. Yes, many of them are kids and accidents happen. No, not all orders might be lawful but that is where proper training, retraining, and making sure that the other officers and NCOs have a complete understanding of the laws, the Constitution, military law and the laws of war. If you don’t feel that is possible then you shouldn’t be a commander, much less an officer.
If you won’t refuse to carry out an unlawful order or take all action as a commander or senior NCO to prevent the action on an unlawful order then again, you have been promoted beyond your level of incompetence.