I can't figure out how to diffuse the last bomb (the one with the 5-min countdown timer) on hard difficulty. On normal difficulty, it's right under the submersible, and you just crouch on the dock and freeze it. But on hard, it's located in an impossible-to-reach location on the right side. I have yet to find a place where I can stand or crouch and reach it in time. I see there is a platform between two diver suits that might work, but I have yet to find a way to get there. And yes I have tried the crawl space.
Please help--I have no idea how to get past this.