According to SNP, they want to increase the number of military personnel by having a defence force of roughly 15,000 plus 5000 reservists. Stationed in Scotland are 11,100 personnel and 2,200 reservists (summer 2013 figures).
As reservists (by definition) are based close to home, then boosting those numbers will be up to them. Also, they will have to put a very attractive package on the table if they want to persuade people serving in the Forces of one county to transfer to those of another (this does happen, BTW, between friendly forces so neither impossible nor unprecedented, but usually only done for as good or better terms).