The World Builder is a tool used to edit scenarios.

Launching The World Builder

To launch the World Builder, navigate to your Company of Heroes 2 local files and double click WorldBuilder_CoH_2.exe.

Alternately, the World Builder can be launched from the Tools menu of the Mod Builder.

World Builder User Interface

In this page we'll go trough the User's Interface of the World Builder and overview of the tools.
If you want to start right away creating a map you may want to visit one of these: