Well the official RAF recruiting website talks about bases. The main RAF website calls them Stations.
Seems the RAF can’t make their minds up either, although you commonly hear people talking about ‘being based …’
Interestingly my old Kuwaiti DS was often getting flagged up by security for being overheard talking about ‘Al Qaeda’ … which in English is ‘The Base’ when he was just pottering round the place. So may be Stations and being stationed might be a better idea?