JEAN AND ASMA LAY ON THEIR COTS IN BODY ARMOUR AND HELMETS listening to almost incessant firing. They shared a room in one of the safer areas of the base. Reinforced with concrete, it nestled inside thick Afghan mud walls.Jean said: ‘I’m sure the enemy waits for the contractors to leave the base before they start this.’‘But only a couple of the contractors went out today,’ Asma said. ‘Martyn’s still here because he’s coming to the