Never played that game before but wouldn't it be cool to fight nature. I'm sure anyone who's been to the beach before has tried to hold their ground against a big wave. Imagine a giant pool of quicksand that pulls players in and puts a gravity/amnesia/ mute effect on them. You have to struggle to get free so you can be usefull to your team again. Or have some kind of system where you need another player to help pull you out.