This probably isn't a fight I'd do with any more than 2 people. Having problems staying on platforms, just take one of the corners on the platform and stare at the opposite side of the platform, makes it real easy to see where he's going to dive from, then just sprint if need be...

I'm not very fond of swimming in a storm.

Realistically, people shouldn't even be falling off in Titan anyway, unless you have a fair bit of delay.