OK, I have the game but am too busy playing another series.
I need some testers !!!.
You will have to manually copy/install these to the game Map folder.
I made this sometime ago, it better defines the terrain levels ( in my opinion, square peg round hole ).
Based on a mod for Squad battles by J Mass which only had the four 2D100 files, I have added the four 2D50 and four 2D25 files, also included is a new 2DTerrain25 file.
If you don't like it, just reinstall your default map files which are found within the game.