The spread of Catholism iin general though seems too fast, especially in Egypt. In every game, not one exception of those 50, Egypt became catholic by c1150 and never converted back to islam. This is because Fatimids fall so easily to germany and others who attack them and none of the muslim neighbors want to attack those big nations as they are all tiny sheikdoms. I know historically Fatimids should fall about this time, but so also should Mameluks come into power, something the game doesn't do, so we end up with weak shiekdoms unable to beat up uber kingdoms and Egypt remains firmly in chrisitan hands in every game.