After 28 years in Law Enforcement, and many of them as a trainer, and firearms instructor, the most important item that I have not seen on the lists, (old eyes, I could have missed it.
is "a WINNING MINDSET. Determining that you are going to WIN at all costs, and go home at the end of the day is paramount. I have instilled this mindset in many of my officers before retiring. I will not let some scumbag win, I will do whatever is necessary to survive. This mindset will cause you to wear your body armor, train, study tactical scenarios, learn to shoot tactically, etc. Like I used to tell the kids in the police academy in the first couple of days, the most important tool you have is your BRAIN.
PS, this should apply to anyone who is a CCW holder with certain adjustments.
Marine, Retired LEO, Firearms Instructor, Life Member NRA Tea Party Member, and general all around trouble maker.