7 0 1As the description says, you need to break 11 chamber monitors throughout the campaign. Here's a video from RoosterTeeth which shows all monitor locations and how to break them: Hope this helps, and happy hunting! Seems it must be in a single playthrough? Would appreciate confirmation, but I'm not going to test it since I doubt it is tracked in Challenge Mode.Since it is late game (starting in Ch. 8), you don't have to replay too much of the whole game if you have a save file close enough before the chamber 1/19 in Ch. 8.Posted by Jarie Suisen on 20 Jan at 17:18