Custom battlefields on campaign map...

Doles anyone knows or can poin t me to a tutorial on how to alterate a location of the camapaign map in order that when the units go there in battlefield it looks exactly like edited with the map editor ? Example ... I want the real piramids to show up in a certain place as battlefield how to do that?

Putting features on the Campaign map (custom tiles)

This is what you're looking for, as per the Important Modding Information Thread index stickied at the top of this forum.