localization strategy and variables

Hello, 

I'm quite new with Articulate and am still exploring a lot of ways to create E-learnings in the best way. In this moment I'm looking for information to create the same E-learning (SCORM format) in different languages, but in 1 SCORM package. So that I can upload the SCORM package once into our system and so that the users only need to choose their language in the beginning of the course. I already read a lot of different approaches and posts, but as I'm not that familiar with Javascript, html and the posts are from a few years ago. I was hoping that someone could help me now and tell me the best way to create this course (in basic steps please :D as I'm not an IT expert). 

What I understood from all different posts and articles: You have 3 ways to create an E-learning in different languages: 

• With layers -> less interactivity
• Multiple scenes -> but then you can only include 1 quiz? (in 1 language)? 
• States & triggers -> less interactivity

We do have a test at the end of each E-learning that should also be translated in each language... and we use a lot of interactions. So what I understand from this post and others. There is a 4th way to create such an E-learning?

• Namely to create 4 same E-learnings (let's say 1 in Spanish, the other one in English, one in Italian and one in German). Each has a different SCORM package and zip file, but you can then insert them all into one SCORM package and zip it so that the course can be uploaded into the system? Or am I mistaken?

If this is possible: Could someone please explain the steps I would need to take? Do I need to create a new file? (Sorry if this is already mentioned here. I've read all posts, but not always easy to understand being an Articulate and IT rookie.) 

Don't know if it helps, but I have inserted the content of a zip file of an E-learning in the attachment. This is just from a course in English.  

Thank you!