well that would be hard to get full knowledge. scouts lose knowledge after they get back from their scouting missions. with Barca I'm trying as well. I'm in 2031 which makes it a little easier. Because in my game, many regens have become staff, and many of those regens have gained a lot of knowledge of a lot of countries, and my trainig staff is partly from Spain, all my scouts have different nationalities. They get knowledge of a country when having played in that country, having a second nationality, or having friends from that country. well apart from that you can choose your own feeder clubs after a few years. I expand to regens where I don't have a lot of knowledge. The first feeder club I chose was Kedus Giorgi's, giving me full knowledge of Ithiopia, probably some of surrounding countries as well like Somalia, Eritrea, Sudan, Kenya or Djibouti.