How Was The In-game Movie Made?

I finished the USN Sub Campaign and there's a movie of the US air attack on the RGN's ships.

How was that produced? It's a great clip. I believe I saw it in a promo clip, too.

The reflective water in that video is amazing. I take it that's not the same ocean emulation software incorporated into the game?

The sequences are all rendered in studio Max. Our ocean doesn't work in Max. All of the models are from the game though. The ocean in the game is going to get much better as well.