I figure that, this shouldn't specifically have to be a water poly, but there should be a way to simulate water. Although this will probably never be implemented, and would require a lot of coding. I think that a poly should be No Collision, and Hurt you. But, it also should NOT affect your Bullet Proof Vest. This way, it's like you're drowing. And, you could set it up to only take effect after X amount of time. This way you could make an underwater map where you could jet out of the water every once in a while to get air. Any comments?