Their safe zone shrank as the creatures surged closer and closer. Suddenly two more assault rifles joined the battle. Glancing east towards the evac tunnel, Coleman recognized Corporal Harrison and Private Sullivan of Second Unit. The Marines must have spotted Third Unit’s desperate situation while racing for the descending door. Weapons up and firing three-round bursts, they recklessly advanced towards Coleman’s position. Eight creatures turned and charged the newcomers. The two Marines just kept on coming, advancing straight into the hostiles. Coleman couldn’t let them throw their lives away. He activated his radio. ‘Second Unit – stand down your advance and escort the civilians to the Evacuation Center! I repeat – stand down your advance and protect the civilians!’ They hesitated. Coleman knew how they felt. Marines never left their own people.