When you walk on the end of the waypoint with a short pause you can drag the 'Hunt Waypoint. Right on top this way you don't tire for a long time. Drag the Hunt on the timed pause waypoint. From the two merged waypoints plot your next move. Tired units are not affected in any other way. Tired units just can't go fast. You need to be fatigued or exhausted till you lose the ability to hunt or go quick. You never lose the ability to walk or go slow, even when exhausted. I do this often with quick and fast so that the moves will be canceled upon full contact. Works best with split units.