I have a question for you all regarding the guard order and how it "procs" on your opponents turn. The rules to me are a bit vague or maybe i am not reading them fully either way im not sure. When a gaurd order is placed on a model when does it "proc" on the opponents turn. Is it only when they physically move or is it anytime they attempt to activate a piece that is in LOS of the model(s) on gaurd.
Another thing is what happens when more than one unit is on gaurd? Can they all "proc" on the same model if need be?