It just needs some sort of synergy plain and simple. The melee is great and the super is good but nothing works together on that skill tree. Inertia requires sliding and the melee requires jumping. Two very solid perks on their own, but some sort of synergy to make them work together would be so nice. Like killing a target with ballistic slam activates inertia override and inertia, as a bonus on the perk (meaning it doesn't have to be active), inertia override could grant faster sprint speed and by making use of your faster movement you regenerate melee more quickly (think of that one pve modifier that makes you move quickly to heal). Just something like that could change it up for both pve and pvp as the movement of this skill tree should be the focus and maximizing it should be rewarding.