The knockback spell that both Gunslinger/Sniper have basically only somehow works when you are standing on a level ground, the moment you are on a slope or uneven surface it knocks the target basically 1-2 meters away...useless design. For example. I just noticed in a warzone, the pushback spell that a sorcerer has seems to work whether I am above the sorcer, below him, we are on a level surface...interesting a similar spell can work for one specialization, but not for another.