The regulator (CAA) while it does accredit your experience As a skilled worker and reduce your training time it does not recognise your qualifications.
Therefore you have to do all the exams, multi guess and written.
Your military log book is next to useless unless you are working under part 145
not military regs. I.E shawbury .
resource at kemble is popular 147 training school and you can use your learning credits.