Instruction :

Add the following startup parameter (copy all text)


--vfs-fs dropzone --vfs-archive archives_win64/initial --vfs-archive archives_win64/supplemental --vfs-archive archives_win64/optional


For Steam, right click Generation Zero in your Library and select properties.
Click on "Set launch options..." and paste the parameter into the box and hit OK.


Extract the mod archive in root folder of Generation Zero.
Default path should be something like this: C:\Program Files (x86)\Steam\steamapps\common\GenerationZero