Alright, i must be complete idiot not to see that i can choose between campaigns, and mine was inside
(Sorry, influence of Warriors of the North, there u have only single campaign).
But right now it doesnt start, it says that game must be restarted in order to start it, and when i restart it it just return to original campaign. I'm assuming that i didn't place all required stuff in order to launch it. So, what are req stuff?