Ludi1867,
I am an eastern/middle east/balkans guy, too. I just finished a new book about the Berlin to Bagdad railway and the German plans to launch an anti-Entente Jihad in Libya, Sudan, Arabia, Afghanistan, Persia, etc. They invested a huge amount of money for little historical result, but I hope the option is in the game. The Sussumi tribesmen actually launched a fairly serious attack on Egypt from the west.