Wait, what? You are several hundred feet away from a guy holding a shotgun, and you would run up to him, punch him in the face and try to get the gun away?
What is wrong with you?
I would run screaming for help in the other direction. I absolute, under no circumstances would run at a man holding a shotgun and then punch him in the face. That is what a psychotic person does. (And Arbery was psychotic because his medical records released after his death said he was diagnosed as psychotic.)
At several hundred feet, with just one person, of course I’d run.
With three A-holes and they are close? At that point my attitude is I’m dead anyway, at least take a scumbag or two with me. Draw down on me and you’d best kill me because you have given me complete justification to do that to you.