I was looking on the DDS website at BA military services fares, seems there have been some changes over the past few weeks .
however, being BA, one Osage says one thing,mtge T&Cs say something else.
the new changes on the front page (and seems accurate when you go to the web site) is that only economy standard and Business are now available, plus no discount on BA flight and hotel or flight and car, so no buy now, pay later, only pay at tine of booking.
also, only BA fares, no BA franchisee or one world alliance partners travel

pity, it used to be a good discount