What do you mean with spotted, the red pointer on minimap or the romboid over the head? Cause pointer is auto for everybody when they reveal with shoots or reactors, im not sure if meleeing reveals you. I think eldar got the adavantage of invisible skorpions so this niche is full, i dont get your idea of Hawks being unspotable, cause they also have movility, and their spot is in 2D map, they use real 3D sceneario so is not instant location as someone could suggest. Obviously they use to be up in the air, but having 2 sigilous classes seems too much, we have to look twice the floor already and 360 looking for hawks, plus slim and fast, and hidding to a place that is imposible to get in time. cause you cant chase them. They can also shoot from windows in angles that nobody can use. ANd this, is hard to fight with one only Hawk, when 2 or 3 work together is a real nightmare. Cause nothing is more annoying than get shooted from several sides with eldar weapons, their FX are blinding by itself, they rlly dont need the sunrifle ( give more blindness) beacause with those lights on every shuriken bullet is enought to cause confussion, blindness and stress So enought blindness allready to have another sigil class is my conclussion. But Hawks spoting on shoot seems more legit.