Guys, there is mod support, though there is no mod tab built into the game. The easiest way to add custom maps to the game is to create a new campaign and add it as a mod. You can find information here
https://sites.google.com/site/sbobovyc/mow/mod and here
https://sites.google.com/site/sbobov...ing-a-campaign
If you have any question or run into problems, let me know.