What happens when a units Retire path takes it through another friendly unit?
* A retiring unit seeking to avoid interpenetrating another friendly unit requires a gap of at least one stand in width within a 45-degree arc of its direction of movement. If this gap is wide enough for the unit to pass through in its current formation, it will do so. If the unit will not fit through the gap in its current formation, it will collapse into a column formation (the narrowest option available). If no gap of at least one stand width exists, the unit will retire via the most logical and least disruptive path inside this 45-degree arc, causing one disorder to be placed on any friendly unit that it moves through. It will maintain its current formation in this case. Retiring units may not end interspersed with other units, and will keep moving to the rear until they find themselves in the clear.
