Inside the model folder there is a playable folder which does not replace any current files from the game. Man are you sure the mod work without replacing the game files? Then doesn't make sense.
It looks like mine game folder is difference than yours. It doesn't had gameData folder. All the folder sit on the main folder. Let me see if I rearrange those folders to make it same as yours and see if the game can launch.
Dan I forgot about the other folder which contains those .dd files
It works now. Because I was looking at you only copy and paste the model folder and now I realized on your screenshots there was extra folders there.
I was wrong it didn't work. I think your mod compressed with zip has problems. The folder contains those .dd files doesn't look the same as yours on screenshots. Mine game have DLC. Yours look like a base game without any DLC installed could this be the problems?