Rule #1 - Don't get shot.
Rule #2 - Short, controlled bursts.
Rule #4 - Watch your bullet drop.
Rule #5 - Patch your wounds.
Rule #6 - Keep a full mag.
Rule #7 - If in doubt, fall back.
Rule #8 - Keep the enemy suppressed.
Rule #9 - Follow orders.
Rule #10 - Beware of confined spaces.