You need to set up a MODS folder in HSFX.
For maps installation (folder names as in my installation).
Create folder like:
c:\Games\IL-2 Sturmovik 1946 - HSFX6\MODS\MapMods
Copy maps folder from root\Files to MapMods
This has the all.ini files which you need to setup new maps - not needed for re-paints
Within c:\Games\IL-2 Sturmovik 1946 - HSFX6\MODS\MapMods\Maps
install folders _Tex and Crimea folder from the maps download
Also, by editing the all.ini, you can change the order and displayed names of maps in the drop down menus.
You need to copy a few more things from root\Files into MODS to get new aircraft, ships etc working in HSFX. For new maps or re-populated maps, you may sometimes find that some objects or _Tex files are missing which prevents missions being saved in FMB. Only solution is to track down the missing ones and get them installed. Ask if any maps don't work.
The way HSFX will work is to load the first copy of any duplicate files it finds. The search order is MODS folder, Files folder, then SFS files. So the original Crimea Map files in the SFS files are not overwritten, just ignored. If you want to revert to clean HSFX just rename MODS to -MODS, then it will not load.
Ashe