I have been killed various times by fusions with firmly planted on it. People use the fusions offensively by sliding into fights and charging during the slide. The game counts sliding as crouching and firmly planted activates while sliding causing moments where players on a team running a firmly planted roll fusion to easily slay out with it. My proposition to nerfing firmly planted is, that it is not activated during a slide so that it cannot be used offensively and has to be used defensively.