The beta manual mentions that IF Persia is Integrist, it should receive a Mazdeist missionary every year in the capital. But Mazdeism is not a major religion, so how can I become Integrist?
Also, what happens if Persia converts? Does the game require Persia to be Mazdeist for this to work, or will a Christian Persia still receive these extra Mazdeist missionaries (provided that this feature works at all)?