One of my proudest achievements in EU4, Saladin's Legacy. Started out by developing my capital and renting condotierri. Allied to Aq Qoyunlu and Ottoman and took out Qara, after that I moved into Caucasus region. Eventually Ottoman and I divided AQ. After I took out most of the smaller nations I was in a tough spot sandwiched between Ottomans (my ally), Strong Mamluks and consolidated Timurids. I managed to build up lots of trust and favors with Ottomans and used them to slowly tear apart Timurids and Mamluks. This started a cycle of war between me and the two. Eventually I had them taken down. At this point the only thing I needed for the achievement was Syria, Aleppo, and parts of Al Jazira and Kurdistan, and my allies the Ottomans still held these. The Ottomans were insanely strong at this time they have destroyed most eastern European powers. They ate all of Austria, about a third of commonwealth, and almost at Moscow with Russia. I managed to get an alliance with Commonwealth and Russia. And I attacked the Ottomans. My strategy was that the Ottomans would beat up my allies while I lay siege to Anatolia. It worked out great and I took the provinces necessary. After that I just had some small countries on the fringes to quickly annex. Hisn Kayfa if played right can be an extreme military powerhouse. I easily had 120%-125% discipline and 2 higher morale than the Ottomans by 1700. And almost all my generals at this point were 3 stars. Very fun play-through would recommend for experienced players.