david had mentioned to scott about the new-fangled radios that he had used in afghanistan , not giving away any national secrets of course , and scott bet him that he could crack the system in a week ; it had taken him four days , so as david listened out on his pirate radio he quickly realised who was out there , it was captain , now major , cummins , the second in command of that fateful afghan detachment ( and the one who had bubbled him to the hierarchy ) , he had obviously gotten his thirty pieces of silver , his old mate dennis , and two new squaddies that he didnt know , although one of them had made a bad landing and damaged his ankle .