Not only has the Megalodon that everyone was searching for finally been found, but it isn't disappointing in the least. Note how it gracefully explodes when it hits the water.
It's become apparent that the most interesting part of Battlefield 4 are the many easter eggs. They started with the Megalodon rumors, which nobody was initially able to find. It looks like the giant shark was added in Battlefield 4's Naval Strike DLC, on the Nansha Strike map. So what if it wasn't there all along, DICE came through and made everyone's dream a reality.
Battlefield 4 Players Have Finally Found The Megalodon