Off course you are all talking cr@p.
The UASs are RAF units and, although you do not have to join, you will have to have some military interest. You can put the flying towards a PPL, although the flying is better than you would get on a PPL course (aeros, low level, formation).
You should look into a Uni's that have UASs and once in apply to join at the freshers fair. I would suggest a Uni in Aberdeen, St Andrews or Dundee if you want to join the best UAS
Tonks