I like Idea of ThorHC about mecanics based on Footwork/rotation perk, but if we wont to do perk dependence we could do nimble as active skill with high fatigue cost(25?+ some ap) that give extra move points, and being available if armor penalty less than 10-15?(don’t really know) fatigue. So archers can not use it a lot,and footwork+nimble will be very expensive combo