I would say get your B2 before you do anything, can you do some modules before you leave the RAF. If you think about basic logistics of it , how are you going to get back to do exams regularly. Do the EASA B2 and not a local licence as they are not as portable. Watch out for local type training as well. If its not EASA 147 approved its worthless back in Europe.
Still a few far east jobs that will only take EASA licences from certain member states as well.