[Lejo]

Its not just a matter of dropping in a new map mod into the MODS folder is it?..
Doesn't it require that map to then be logged in the allini for the maps, if so where is it now located?
What about the tex files etc for changing the look of a particular map?..
I know this new system gives us faster loading times, but it seems I've now lost the ability to get at many files that I needed to change my game.. presets and sounds for instance, because I want to change back to many of the sounds I had with my old install?

Actually adding maps that are not present in the HSFX is not that difficult.
Create a MODS folder and in it a Mapmods folder and it should look like this: rootfolder\MODS\Mapmods\
In here you can drop your missing maps and _Tex folder.
You can find the HSFX all.ini in: rootfolder\files\maps\all.ini. Put a copy of it in your Mapmods folder and add the line of that particular map. I tried it and it works.
It seems that everything in the MODS folder overrules the HSFX mods.
I still have to sort out how it works with sounds.