[fly_zo]

from readme :

2) DISECTING TGA FILE
Place MWmap_c.tga into a folder where
CMap.jar is.
Run:
disect.bat
This will create newMWmap_c.tga and MWmap_c.tga_table files
which are in format which IL2 can understand. MWmap_c.tga can
be any image you modified or created from scratch. MWmap_c.tga
must have dimensions which are multiple of 32x32 (for example
1536x1312) and have color depth of 1 byte (i.e. grayscale image).