Given your background, I don't doubt it ... but I'm pasty white and 60 ... I'll take 15 feet of separation and my Glock, thank you.
As far as the noise and brass on the ground, I'm not trying to sneak around shooting people .. I'm only interested in defending me and mine.
That being said, in a beat down situation like what happened in NOLA you'd have probably had a good time carving your initials somewhere that was painful for the perps.
My pref is to carry both a knife and a gun. But inside of ten feet, it’s knife first.