Stable Checked, I can guarantee you won't get the base you want and almost guarantee you won't get the right country. Newly promoted captains with young families are sent away from their long term base and families, even though there are shortages within that base, just because the company can do so. I have seen two captains want to swap bases to be nearer home, both on the same roster pattern (dates and shifts), so there would have been no effort or disruption to the company and several advantages (shorter response time on sby and less tired pilots from long drives, for example), but they were told that their swap would under no circumstances be permitted! Why? Because they can... And this happens hundreds of times a year.
So join if you need the job, but not for any perception of basing options.