Bet your ass I would do it too! Hooah!!!
Did you notice that woman in the video, who when the guy brandishes the gun, shes still sitting there legs crossed like nothing is happening, until she helps put a table in front of the kids.
If I did 5 tours in a combat zone I probably would too, this situation probably didn't even register on the adrenaline meter with the shit hes probably dealt with.
But since most of my time in the army simply involved cleaning weapons, mopping floors, running humvees a few times in the winter, and the occational fake war using defective miles gear.
That and guarding a parade with an M-4 with an empty magazine.
I wouldnt consider myself very qualified experience wise to deal with that situation.