Um, huh??!

One of the dumbest, immersion-breaking moments in the John Wick series was precisely when he and an assassin were nonchalantly strolling through a crowded building, firing silenced pistols at each other with dozens of people right next to them not noticing. I'm sorry, but JW is not exactly the paradigm of realism here. I never forgot how ridiculous that scene was. Try an actual documentary like Hornet's Nest or something else.