These all sound acceptable besides the disarm on the hunters, maybe have it something like allowing the hunter to pick the knife up only if: 1. The throwing knife isn't a critical. 2. The hunter ends up killing the enemy within 4 seconds. I think if those two happen, I would be fine with hunters getting their melee back since stormtrance get their melee back off of being hit by a melee. Also, since hammer titans get theirs back from getting a killing blow.