Honestly though, how long does it take to 1. Recognize a threat 2. Equip nightvison and rifle 3. Redetermine where said threat is at. His threat insinuates he has a 24h manned snipers nest. How fast can you close 100yds? At that point, nightvison is useless because now you're close quarters and completely crippled by even a small flashlight. Throw the nv out and pull your pistol. Indeed, all show.