I think the rules need a proper campaign setting to get the most out of the African setting. By that i mean an open ended campaign built around an expedition, be it white man exploration, or Zanzibari slavers doing what they did, with the player taking decisions about how to get from A to B, how the column should be organised, say trading off more bearers carrying food and hongo against armed askari, decisions on how to interact with village chiefs (pay the hongo, take what you want buy force, or do without, perhaps hire more natives), random encounters with hostile locals and animals, and an objective etc etc. Probably not everyone's cup of tea I realise, but much as i have enjoyed getting the figures on the table and appreciate the neat system, the unconnected nature of the scenarios leaves me wanting more.