This is the funniest thing ever. I also notice when this happens to me you can't exit the vehicle or do anything except respawn. Seems to happen when you try to occupy the same position in the vehicle at the same time as someone else.

I agree with Cypher. It would be nice if we can have a Bohemia Interactive tutorial from the basic to the most advanced...or even better; show a tutorial on how to create the showcases from beginning to end. That may help too. I've always wanted to know how to create complex missions/intros/outros and what script does what. Please do this...Arma 3 is so amazing and it deserves it.

In image 2013-03-16_00001.jpg the player isn't dead. Upon arrival to the AO, the player was able to get out of the vehicle.

Also turn your post processing to disabled. That can adversely affect your game play. I'm on stock 3.4 ghz with everything set to ultra and it runs great so far.

I had the same issue. The SDAR 5.56mm can't be used underwater. When I get out of water and I was by the side of the rusty shack I didn't see any bullets hitting the ground or the enemy. I had to move behind the shack before I noticed rounds hitting the ground. I suspect collision detection.

It's on the side of the shack closest to the water and two concrete road blocks where I seem to have this issue.