Unlike models in tightly ranked units, Skirmishers can see more of the battlefield around them. To represent this, whilst in Skirmish formation, models do not have flank or rear arcs. Instead, every arc is considered to be their front arc, giving Skirmishers a 360° vision arc. Therefore, units in Skirmish formation can declare charges and shoot in any direction – they are not limited by the constraints of a 90° front arc or vision arc.
Other units can see through units in Skirmish formation if a line of sight can be drawn between the individual models. The individual models block line of sight as normal.