I really hope that they can get this sorted out especially for the mantis blades. I have decided to go with a stealth melee build and I have the charge jump and I like to hop around the battle like I'm the predator. Unfortunately I have to sit through an animation every single time I use a heavy attack which gets incredibly dull especially since there is literally only one for the mantis blades and to add insult to injury, it glitches out half the time. I can compromise and use the augment that makes kills non lethal but then the combat with the mantis blades loses so much flare so there really isn't any winning. I hope they fix this with the next patch because I have really been loving this game but now I have to compromise the way I like to play.