Gibraltar was a RN base long before WWI.
I would have it as a British NB in Southern Spain, not a land tt in its own right (always hated that).
As long as Spain is neutral or Allied the Allies can use the base. If Spain joins the CPs then that side can use it.
It depends on making a distinction between naval bases and shipyards; this game does not do that. Hence, there are no NBs in colonies to prevent ships being built there.
If there were scope for NBs which were not shipbuilding centres, then Gibraltar, Malta, Cyprus, Alexandria, Dublin, Bombay, Cape Town, Scapa Flow and Halifax NS would all be viable candidates, as would Freetown, Aden, Barbados, Bermuda and Kingston were their tts on the map. Again, it depends if you want to have mines attached to all NBs or not.
I must say I find it hard to see why they bothered putting the Balearics on the map - will anyone ever bother invading it?
