Intent on their mission, or on survival, they all ignore the U.S. soldiers walking off with suitcases full of gold. Archie sees the dilemma first. The decision is made. Archie aims his gun at one of the bad guys. Someone shoots someone else.
Slow motion shows the exploding flesh and blood.
Then everyone starts shooting. But the dilemma ends up being more complicated than this burst of action implies. It's awful, and Said winces. The line between right and wrong isn't easy to see. The movie has to conclude somehow, to extricate itself from its messy dilemmas, re-establish sympathy for the protagonists through heroic feats and requisite tragedies.