Here is a map which contains 7 warehouses: two at Paris, one at Lille, one at Dijon, one at Reims, one at Luxembourg, and one at Genève.
If you don’t have the DLC France, please download the fix:
Link 1 warehouses
Link 2 Fix correctif_dlc_fr
Credits: Ficfic, DaikynCH, Max & Mickaël
DOWNLOAD part 1
DOWNLOAD part 2