PENTHOUSE MOD LPCONDA

Installation:

OpenIV in Edit Mode:

First go to: 
[GAME FOLDER]\update\x64\dlcpacks\ 
add folder " custom_maps " 

Now copy the " dlc.rpf " from your downloaded "custom maps" folder
in [GAMEFOLDER]\update\x64\dlcpacks\custom_maps\

After That go to [GAME FOLDER]\update\update.rpf\common\data

Left Click on: dlclist.xml

Select: "Edit"

add line: " <Item>dlcpacks:\custom_maps\</Item> "

you're done! ;-)