Disturbing nonetheless, goes without saying.
Looks like a wrong address situation, and/or “swatting” incident (late night shots fired 911 call is not necessarily a ‘warrant’ in that such a 911 creates a exigent circumstance, so delays have not been addressed. Did he know it was the police, was he coherent enough, and why in the heck hold something, anything in your hand?
The guy, according to his video cam showed he was not in any hurry or distress to find out WTF is going on with all the noise in his abode, in fact took a moment to light a cigarette. Ticked off, yeah, he never expected that whoever was doing the banging was any bad guy burglar he was willing to open his door to, so the element of him knowing or believing it was police is established.
Very much could be an LE overreaction but only in regards to whats on the video - in my opinion. This shouldn't be an assessment of any potential red flag, confiscation or questionable firearms possession infraction.
I would not want to be in either position…LE or citizen.