I replayed the Fox report. It said, police were using loudspeakers and explosives. Perhaps flash bangs qualify as explosives? I really have no idea.
Yeah, they do. Those grenade launchers make some noise too. The sequence is just weird for flash-bangs to be followed by gas. It’s usually the other way around since gassing your own people is considered poor form. Yet, you’d think the newspaper reporter who says there’s been an entry actually knows that. There could be multiple locations and they’ve entered one I suppose. Scanner-wise, at any rate, there’s no indication of an entry yet.