So, this is now, like, the 6th or 7th thread, at least, about not being able to play muslims and pagans. Do people never think of, y'know, searching for an answer before asking? There may be a slight chance that your question is already answered.
I bet people will ask even after the game is out for months...
But honestly, what do you think the search button is for? Just to look nice? Have you even bothered to read anything about the game? Because, if so, you'd knew you can't play muslims, as it was said countless of times.