NBO Base
Nairobi base will be challenging for FZ to enter. Kenyan govt is very protective of Kenya Airways as such foreign carriers have it tough and rough entering the Kenyan market.
Even if FZ manages to have a sort of agreement with the kenya govt, i doubt they will be able to overcome KCAA red-tapes.
Case example Fastjet have been trying in yrs to enter the Kenyan market without much success until yesterday when fastjet was incorporated into a company in Kenya through a Kenyan national who now owns 51% of fastjet Kenya franchise.
That's how you do business in that part of the world.