Dear "Rizo", have you read the rules? You should only play from a saved game, and there aren't many options there; no matter what you do, you'll end up playing as Fortress. Is version 3.5 "In the Wake of Gods"? If so, you must have installed it on "The Shadow of Death," so the executable from SoD should be saved in the root folder. I think you can launch it from there, as "In the Wake of Gods" won't work in that case. You also won't be able to change the difficulty, and the map probably won't work on "The Restoration of Erathia."