First, thank you very much for this. I liked those scenarios from CivIV so thank you for converting this to Warlords. Now, for some critisism.
First, the Arabs suck. In the first few turns they lose almost all of their cities to European crusaders except Mecca and Arabia. They should have had some longbowmen but they only had weak archers to defend their cities.
The Arabs should also have had Baghdad. The Abbasid Caliph ruled from Baghdad until the Mongols invaded. I don't think Mecca was ever the capital of the Islamic empire. The Ottomans didn't occupy Iraq and Baghdad until the 1500s, iirc. The Arabs could probably be a vassal of the Ottomans, though.
Historicaly, the Abbasid Caliphate had already lost North Africa by 1000. They lost it to a Shi'a dynasty called the Fatimids, so perhaps they should be added there with their capital in Cairo.
You made the Byzantines from the Romans. You should have used the Greeks. The Byzantine empire's people were Greeks and they spoke Greek.
You should have given the Turks a city in southern Iran and called it Isfahan and made it their capital since it was the Seljuq capital.
India should have had a city or two in Pakistan.
Korea is overpowered. I tried conquering them as the Mongols, and I could only take P'yongyang. I tried to attack Taejon but I was defeated. The Koreans probably should have more then the two archers they had when they were barbarians, but I don't think the Mongols had that much trouble conquering Korea.