Creating New Campaign Map in Rome Remastered

Mesh Heightmap bins

Using a data\terrain\campaign\descr_map_tiles.txt file with differently named .cas and .bin files requested than in the original game will trigger the game to write new .bin files, if these files don't already exist in the mod-folder they will be written in:
DATA\terrain\campaign\heightmap
That's the main game data folder not the mod-folder, cut and paste them from there to your mod-folder! Cut, because if they overwrote your original game files, you will need to let the vanilla game recreate them based on the correct map.