One of the soldiers, apparently mistaking the thrown object for a grenade, dives behind one of the vehicles. The others, still surprised and now startled by this apparent act of aggression and the sudden movements of their targets, open fire. Andrew and Desmond, apparently unable to recover from the shock, are mowed down by a hail of bullets.
The rattle of automatic gunfire hammers against the ears of those still alive, and bullets ricochet dangerously off the rocks. Being all in one place like that makes the situation all the more dangerous, as a shot intended for one of you may very well strike another...
The Professor is nowhere to be seen, he seems to have run off and hidden. His bag is in the snow near the small ledge.