Each tour has a download file with it and that contains all the information for that tour. You will find each RTMM scenery required, all the ORBX scenery and an a sky vector chart of the flight. While this contains all the scenery required for the tour, it is not all the scenery you will eventually need. If you intend to keep flying the tours, eventually you will need to load all the RTMM scenery....I started with the "A's" and moved down the list, All my RTMM scenery files are in one place on a different drive from the sim...and then linked through the library. Hope that helps.
Henry
Misty Moorings Team