Might be helpful if you attach a text file printout of your DxDiag.

That's odd. Try putting a round in his foot. Maybe that'll jumpstart him or something. If all else fails I guess just try a complete restart of the mission.

EDIT: Oops guess you already tried shooting him!

I was experiencing this but finally the soldier walked over and hopped in the driver's seat and I was allowed on as passenger.

Already an Issue Report about low GPU/CPU utilization.
http://feedback.arma3.com/view.php?id=716

Confirmed.

Agreed. Barely take a scratch when in serious crashes/rollovers.

Experiencing the same bug during the SCUBA showcase. It has also happened to me while completely submerged and not attempting to go back on land. Wasn't able to grab a screenshot of that one.

Might be helpful if you attach a text file printout of your DxDiag.

Just curious, but is anyone experiencing this crash that is not using an integrated graphics chipset?