I'm not quite sure why it is. But if the squad has some kind of transport, invariably that transport is doomed to explode. I'm sure there is a PHD in this somewhere, maybe someone has written one already. Maybe titled "Team dynamics in a virtual economy", where the resource is somewhat of a rare commodity, but not so rare as to cause great harm to the team's functioning if lost.
Why does this happen? I think it has to do with being alive. In a virtual world, what is the true meaning of being alive. One of the definitions of consciousness, which is under some debate at the moment, is to have "subjective experience".
I think Craig blew up our chopper, this may be subjective, therefore I'm conscious.