for anyone who cannot seem to make this mod work
all you have to do is edit the [install_survival.bat] and replace the first xcopy with
xcopy /i "%CD%\privategamelobby_project.lua" "%localappdata%\Plutonium\storage\t6\raw\ui_mp\t6\menus" /y
and ctrl+S to save it and then open the game from [Start Plutonium without update.bat]
in my case what i did is i put the mod in %localappdata%\Plutonium\storage\t6 -> mods (create new folder for the mod) and did the above instruction and it worked
Credit to: Hadi77KSA