Good that you are doing this. One thing you mentioned that stood out...at our age, no punching with a closed fist! Bone breaks too easily! Palm heel, hammers, knife-edge (the old “karate chop”), elbows, etc. Bending and twisting of joints...but whatever situation presents itself, once it’s go time act quickly and decisively!
Our church security team has not had such training. We did have a meeting in which a recently retired detective came in to speak and I guess kind of educate us. Very nice and likeable guy. He had a therapy dog! One of the things he told us was, you are better off not carrying a gun because you have the temptation to use it, and now you’ve introduced a deadly weapon into a “very dynamic situation” saying you’re more likely to shoot innocents or get shot yourself when the “professionals” arrive on scene.
Of course we didn’t take his advice. But our “team” is not very organized. We’re lucky to know who each other are. I dealt with a series of health issues that kept me off my feet pretty much for about 5 months and when I went back to church I found out the old team leader was not the leader anymore and the new leader was a lady whom I never would have guessed would be suited for the role. We’ve got guys who haven’t had any shooting practice or training in years. Like 4 or 5 years. Or more. I personally know guys who carry pistols they have never fired!
Some of the things you said remind me of that Jethro Tull song Wounded, Old, and Treacherous
We had a situation years ago where 4 guys came in early before Sunday service looking for the Pastor who wasn't there yet but the janitor who is an honest-to-goodness ex Marine and taught some form of martial art at a local school...he confronted them and they beat him badly and put him in the hospital.