I think this was during a wasteland or usermod

jjondle is correct, the picture was taken at the wrong time of animation and looked better in screen shot but the animation of water returning from waves crashing on the beach just looks like a constant water fall towards the sea rather than a back and forth motion that is more natural.

EDIT: Also the other guy is more concerned about how unnatural it is for this animation to be occurring on such a steep terrain rather that just complaining about the overall look of this animation

I too get this problem, do not have the ability to type out what i have like him but im using a p8z77-v lk mobo using onboard audio and drivers for audio from mobo drivers.

It was during an escape from stratus mission

Sorry knew i needed those files but couldn't find them on my ssd, got them now though,probably about 3 more crashes on there by now

I also have problem using an apple airport i think that major problem is they are pop up servers being run by a host computer rather than server. Bigger problem is not getting a ping in the lobby to know what servers to join or not to join. I think this because any server allowing more than 12 players is private and you need to have a password because of this overpopulation and over pinging due to first day launch.