Overall I prefer the ps3 controller , because of the easy to grip shape and Dpad layout but I HATE the shape of R/L 2 triggers, slippery and too soft when compared to 360's.

They're using UNDERWATER rifles with special 'dart/bolt' rounds. Not regular rifles.

I believe the one in the trailer is the Russian APS underwater assault rifle. Although the effective range is painfully short (100m on paper but under 50m real world) with rather low accuracy but still way better than using diving knife.

Awwww cheer up guys, look into the bright side, at least they'll all have FLAT tops.