Look, if your a Navy Seal or some other highly trained individual with real military and combat experience, then you can ignore what I’m about to say. Otherwise, this is a really bad idea.
I’m assuming this was in a controlled environment and this guy wasn’t sweeping the cameraman with a loaded weapon every time he spun around. To me this is a last ditch survival effort – which means that for 99.99999% of us this is just something we’ll see in a movie.
Don’t try it, don’t ever sweep people with loaded weapons. Watch videos like this and think, oh, that cools – and let it stop there.