If you're going to criticize their policy please at least have the decency to read the defence section of their white paper - it's widely available on the internet.
Their plan is to look for volunteers, both Scottish and non-Scottish, to move across to a Scottish defence force. If you want to criticize their plans that is a major point to pick up on - evidence indicates that there appear to be very few people interested in moving across, so the plan fails immediately on that aspect. Let alone the complex issue of getting the right trades and numbers you require, for example, if the SDF were to needs 60 pilots to man it's fleet, and 60 RAF/FAA/AAC helicopter pilots volunteer, things look good, until you try and man your multi-engine and fast jet fleets!