I've posted my specialisation tutorial to the class wiki which outlines how to use existing data sources of real world locations to create terrain.
Originally I felt this would be a Beginner / Medium level tutorial, however I think due to the length and ability to adapt to custom application sets by focusing more on the concepts of each step I feel it is more a Medium/Advanced level tutorial.
I hope someone finds this useful in the future.
Big thanks to Zapwizard and 4k1r4 over at crymod for posting some pretty awesome tutorials which I used as the basis for this one.
http://www.mediafire.com/file/idujvmwm4xd/Advanced+Terrain.pdf
