Board Thread:Bug Reports/@comment-32037192-20170618023131

So to pull off this glitch, you have to climb with karambit. As soon as the knife starts moving down onto the wall, equip something else. You can now have a gun equipped while climbing. Now shoot with the gun (or just rev up with mini). Infinite stamina.

This can easily be abused with certaing buildings (because maps like tokyo map allow you to get to the backside of the building and there's roofs protecting from brute clubs), on RI (no brutes), etc.

It only works with guns as far as I can see. 