3)Tranq dart. Provided you have line of sight on the monster, tranq dart paired with the arena means that he'll be unable to just hop around and do whatever he wants.
4)"I also think the medic having infinite -paralyze- shots is a bit obnoxious even though the monster seems like it can never be caught." blatant contradiction to 3
8) I like this idea, but I also don't think there's anything wrong with the current perk system.
9) If you were to give humans anymore jet pack fuel the monster wouldn't be able to run away. Right now humans need to have solid jet pack fuel management and I think giving them more to work with lowers skill-cap.
10) I take it you noticed all the other not-available perks and how you're not leveling up, it'll be interesting to see what those are.
14) This isn't an option provided the group of hunters have played more than 1 game.