Some very good ideas here. I especially like the idea of a fast barbarian unit - I agree this could make things much hairier in the desert. Indeed I think I may need to pre-place some more barbarian camps in the desert, to give the human West African player a bit more of a challenge getting through it. Historically, of course, there would have been less danger from bandits but more from the landscape itself, so it evens out, as it were. As for the volcanoes, I did actually intend to do that, but evidently forgot. Doh!