Falling off of Fort Charles

[Commandero2468]

I was fighting all of the grunts and navy in fort Charles over by where Elizabeth fell off in the first movie. I ran at the grunt standing near the edge, and jumped. instead of landing and fighting the grunt, I just fell over the edge and plummeted down into the water. I was underneath the fort, it let me see everything and it looked like the navy were flying. I swam back towards the fort and ended up back on the ground. Tried it again, nothing happened. I know that we used to be able to do this before they changed the game, but i thought it was fixed.