I learned that one by someone on Hardpoint just camping a control point with cloak and a shotgun. I was using Radar Pulse (as I usually do on Hardpoint to check points before I enter, or defend them when I'm inside) and a room was all clear, then I get in there and immediately get executed by a guy cloaked with a shotgun. As campy a strategy as I've found in the game, but that dude with the shotgun did get my overzealously running self a few times with it.