It would suck though. You would have a huge disadvantage not being able to see over walls, when your enemy can.

I honestly don't think it can be done though. The game is already 3rd person...that old code only modified where the camera was looking at you from. It's not in the games programming to be able to see from the characters point of view, nor to be able to aim around as if it were an FPS.

If you're looking for FPS KZ, you'd have better luck with KZ1 or KZ2.