Creating specific user interactions in one lesson

Hi all,

I'm currently trying to work out how to create an E-Learning module on Storyline 2. The issue is that not all users/regions/areas will be running the same messages, so ideally there needs to be a few different 'versions'. To overcome this I thought I could do 4 different paths in the lesson, depending on what branch/group the user was from, e.g:

A - 
B - 
C - 
D - 

That way they all have unique content but finish at the same endpoint and it's all nicely contained in one module. 

However, I realise that one of the completion methods is to view all slides - meaning this module style would not allow users to 'complete' it. I was wondering if there was a way around this?

Thank you in advance.