Which of the following is NOT one of the four CQB rules?

• A. Treat all weapons as loaded at all times
• B. Never point weapon at something you're not willing to destroy
• C. Keep finger straight and off trigger until you're ready to engage
• D. Always keep your eyes closed during engagement

Answer: (D)

The main idea is firearm safety discipline used in close-quarters operations. The first three statements reflect standard safety rules: treat every weapon as loaded so you always assume it could discharge; never point a weapon at anything you’re not willing to destroy to prevent unintended harm; and keep your finger straight and off the trigger until you’re ready to engage to avoid accidental firing. The last statement runs counter to those principles and the safety mindset—keeping your eyes closed during engagement would prevent you from seeing the target and what’s around it, which is essential for safe, effective action in CQB. So the option that is not a CQB rule is the one advising you to close your eyes during engagement.