Using Scenario Extensions.
The Devil's Cauldron VASSAL module consists of several different parts.
The Core Module is named the_devils_cauldron.mod and contains all of the Counters and Charts for all scenarios.
It also contains the Map and Scenario Setup for the Introductory Arnhem Scenario.
Additional Scenario Maps and Setups are provided as separate VASSAL Extensions. Each extension is a file ending in .mdx.
For example, the Extension containing the Groesbeek map and scenario(s) is named TDC_Groesbeek_v10.mdx,
indicating it is version 1.0 of the Groesbeek extension.
To use an extension, you must create a folder named the_devils_cauldron_ext in the same folder that holds the
VASSAL Core module (the the_devils_cauldron.mod file). Here is what it should look like:
Each Extension file that you wish to use should be copied into the the_devils_cauldron_ext folder. Here is
the Groesbeek extension sitting in the extension folder:
When you Play the Core module, any extension files in the the_devils_cauldron_ext folder will automatically be loaded. You will
see a message noting the name and version number of the extension in the Chat window when it loads:
The new Scenario(s) are now available via the Scenario menu option: