 Under Wild , Ops ( B ) was expanded and divided into two sections – Operations and Intelligence . It received greater power , including control of the information flowing to double agents . Wild used this to help with planning for Operation Fortitude , the major segment of the Bodyguard plan . This situation did not last long ; another ' A ' Force alumnus , Lieutenant Colonel David Strangeways , was brought over to head up R Force , the operational deception unit of the 21st Army Group . Strangeways and Wild clashed on a personal and professional level . Eventually , Strangeways rewrote large portions of the Fortitude South plan , and pushed Ops ( B ) into a more supporting role . 
