Do you play FT? I only ask because the shot gun and 2xl are painfully slow which is why most people rock the last smg. And in close quarters it becomes almost impossible to hit the Pred with your gun. Try it, go in with one friend and see if the Pred even stays still if he’s in extreme close proximity(melee range) your gun will miss. So you only have the Preds approach to do any real damage. Also the Mini Gun is horrible at countering melee because your movement is incredibly hindered. The Min Gun rocks when the Pred is claiming though or is otherwise stuck in an animation such as eating. But it’s far to situational to really be viable.
And the knife being used as a tool for all is bad but worse is a Pred who can’t blast a rushing FT team member whose wielding a knife. Even if they’re on top of you a Shoulder Plasma cast will damage them faster then they can damage you. I know because I’ve seen Preds do it all the time and have done it myself. And you can easily no stamina hop over the FT and spank them twice and repeat.
And again you said you easily circumvent parrying but here you seem to be making the point as though it’s near impossible. Which is some of where my confusion comes. That seems contradictory to me. But maybe I’m misunderstanding you. And no mobility is harder for FT then Pred so getting to your team or vice versa isn’t that easy. In a jump in 2 strikes and jump over 2 strikes again the FT team usually gets to the guy I downed before I can claim but not before he’s downed and closer to a permanent death or stealth kill. So I either eat some damage which can be very risky depending on the FT team to claim or I bounce with the minimal damage that the single FT member dished out to me.
And while I appreciate the fact that stabbing is weaker then a 50 BMG we are talking about a work of fiction and game balancing not applying real world mechanics which I think would ruin both the movie and the game.
And again I am mostly confused because you mentioned AVP’s system as good but here you want more or less no ability for the FT to defend or be offensive in melee. I even said it sounds like a good system maybe it should be suggested.
Anyway this is my last long winded reply. I see that it’s beyond my capabilities to grasp what you points so I concede. I just wish I could understand so we could see eye to eye. Thank you for the responses and consideration sir.

