It's a fun theory if everyone plays with only one goal (killing their target without regard of getting hunted)

There's some problems with it

1) Points and a runaway affect: if the name of the game is still being the land man standing, there's no point in killing marks. It's always better to run. If the winner is decided by most points, you're reducing players that have no hope of catching up to NPCs- why are they there if it's incredibly unlikely for them to win? Sportsmanship/duty is a reason, but it's nothing binding.

1b) Restrict equipment that you can loot to a certain amount of kills. Add a "notoriety" system. Each notoriety checkpoint drops a crate near you that only you can loot. Get your kill, get the next level of loot.

1c) Two winners: an ultimate survivor, and an ultimate hunter. It's possible to win both. Maybe for fun: the hunted/hunter know each others names, also, the current mark leader is displayed for all to see. This would give "oh shit" or "I'm going to outplay this kid" moments.

2) Agency. People can run at the same speed you catch them. Unless everyone can kill everyone, you can always attempt to escape. There needs to be a mechanism that restricts movement, or gives more power to the hunter.

2b) Maybe make it so you move faster if you're moving in the direction of a mark. This includes driving speed. Downside: if you get lucky and your escape path is in the same direction as your mark, you're escaping your hunter at the same speed they hunt you. So, or this reason I think this bonus should scale with distance-closer is faster.

3) Time. This idea would only work maybe on Sanhok. Reducing the playable area would create more conflict, and faster games.

Overall I like the idea but the current gameplay isn't conductive to a game mode like this. It would take a lot of work on Bluehole's part, but it would certainly be fun.