you have to be a french national to apply and if you don’t have a relative already working there you will not be offered a job
The first part is against EU rules and is not correct , the second sounds like corruption , and is punishable by law so I doubt seriously the statement of your " French F/0"
What is true is that you have to speak fluently French as in France , the basic regulations are in French and the spoken language inside AF is French. ( the same applies in some other EU countries , like Spain for instance)