What happens on the ambush?

The Viet Cong sneak past Monaco, and the American soldiers hear Vietnamese voices even though Monaco has not sounded an alarm. The startled Americans begin shooting at the Viet Cong, who return fire. Lieutenant Carroll is hit by enemy fire, and the Americans begin shooting with an unbridled vengeance to avenge their fallen leader. The platoon evacuates when choppers arrive and pummel the town with bullets, killing everyone - civilians and Viet Cong alike. Lieutenant Carroll cannot be saved, and Monaco leads the squad in a prayer for their “fallen angel.”