Shake Appeal
Member
It's not a range thing, as far as I know. Certain actions just break concealment, including breaking in doors or windows. If your path is going to do that, you'll see little red pop-ups along it to show you what the problem is.What's the range of noise for breaking stealth? I started the third mission and had a guy bust through a door. Alerted the aliens but there really wasn't one anywher close by. Is it just a straight up no noise at all thing?
(You can safely open and close doors while standing next to them without breaking concealment.)