I think this depends greatly on how one defines "tactics".
Just the practice with my firearms that I get by going to the range increases my preparedness immensely. There are some fundamentals that support owning and using firearms that greatly advance once preparation to use firearms in a life-threatening situation.
Let me describe what happened to a guy I know. He owns both a Mini-14 and a Mini-30, both with wood stocks. He drove 60 miles to a range one time only to find that the .223 ammo he had didn't match the Mini-30 that he inadvertently brought with him.
The word "tactics" might not seem to apply to something as fundamental as having the right ammunition for one's rifle. However, there are plenty of ways that lack of sufficient training and practice can result in a failure to perform.
I'm sure that I will never again ... er, I mean, I'm sure that he will never again fail to properly identify which firearm he is taking and match it to the right ammo. He will also never forget just how embarrassingly long it took him to figure out what went wrong.
So what did “He” do
at the Range?