Far to many predators can just run in and soak up bullets especially the berserker predators. It kind of breaks the feel of preds that are supose to he stealthily predators. Not invisible tanks who can just run in head on to a 4 man team and punch them all in the face to death.
I suggest you make a perk that will automatically parry any preditors melee attack performed in the players frontal 180 degree arc once every 15 seconds.
This will force predators to actually act like predators and sneak up behind people instead of running head on into 4 man teams as a zerker and most of the time getting 1 or 2 kills if not more.
Players should still be able to parry regularly between auto Perry.
This does 2 things, predators cant face tank a fireteam anymore which they where never ment to do, and they will actually need to sneak up on people.
Additionally add a perk for predators that reduces the audible range you can hear them from while invisible. Fair is fair.