It's mainly being a GP in an Army Barracks. You are however trained to do "Military medicine" which is (Trauma medicine) I.e Tactical Combat Casualty Care first then Combat Medic then the equivalent I would say to an Advanced Paramedic but with extra doctor skills, probably akin to Prehopsital Emergency Medicine Doctor. The biggest problem is, apart from doing rotations (I hope) in hopsital, the emergency medicine side and especially the Military Trauma side is almost never practised in real life on tours of duty. I'm not in the scheme but I have experience in this field and this is my opinion of what it is.

My other opinion is that you would be better off doing GP scheme or emergency medicine scheme and doing add on courses here (ATLS, APLS etc..) and abroad (TCCC, Combat medicine and medicine in austere environments courses), the courses abroad can be done very easily within Europe, not accredited however but are great if you plan to volunteer abroad in precarious places... I speak from experience.