The fact is the UK owns Faslane. An independence referendum doesn't change that fact. A yes vote for independence is not a magic spell that will create a Scottish nation and transfer ownership of UK property to it. There will be a lengthy period of negotiation and transition, and whether the Scots like it or not, they will be by far the weaker partner in those negotiations.
at the point Scotland has voted out (if it ever happens), then the UK has no longer has any interest in what Scotland thinks, and will be as difficult as the EU was in the Brexit negotiations