I installed the mod and after I checked that in-game I took a picture just to show how it looks like when playing Julii.
I also took the liberty to repack the archive a bit, only for personal use of course, and what I did was this.
1. Extracted the archive into an empty folder
2. Compared the file structure with vanilla and added the missing folders
3. Moved the mod files into the correct folder and overwrite when prompted
4. Created a new archive with better file structure than the original archive had
I even used the repacked archive to install the mod and as you can see in the image I managed to install the mod correctly.
So, this campaign as Julii will intresting to play and I can hardly wait to fight a battle plus discover the world by using the agents.