text: People think I'm nuts for suggesting this before in other places, but why not setup indoor IR cameras, they are cheap now, wireless even and you can place them to cover blind spots, the fact that most come with apps for your phone makes even more sence...Back against the wall, weapon aimed down about 60 degrees if someone is there their smart move would be hiding next to the stairs, but yeh flashbangs https://iwainternationalinc.com/m13-thermobaric-device/