I don't play multiplayer so maybe my idea might not be proper for that. But i think that it needs better aiming. I barely use it because almost always i try to do a kick it's like i'm getting the stun not my opponent, because you get stuck in the animation and the kick hits towards the direction your character was pointing at the moment you pressed the button. So when the opponent moves as it happens most of the times, you get to hit air and then get struck by them. You should be able to aim the kick mid animation, to be able to rotate your character with the mouse during the kick animation so that it would mostly end facing the enemy and connect the hit. Maybe not 360 but at least certain angle in your front.