[GilB57]

I made your maps my new default maps by changing the lines in the all.ini as instructed in your Readme file and it works perfectly well in FMB. But my existing missions still show up on the old stockmaps when I open it in Single Mission/None. And when I try to open them in FMB nothing happens, my screen stays blue and says Standby.

Hmmm, maybe my readme wasn't clear enough :

You don't have any change to do in the all.ini file.
The change has to be done in the map folder under mapmods/maps/..

Example : Stalingrad winter map:
In the /stgrad folder you have to rename GW_load.ini to load.ini
If you already have here a load.ini file (another modded map as default) rename it load-save.ini (just an example).

That's it : my map is your new default.
To revert default to previous state, just rename the load.ini to GW_load.ini