Design

I am attempting to created, in Storyline 2, a 22 lesson teacher training course consisting of 1 introductory lesson, 4 core lessons and 16 satellite lessons divided around the core lessons. We want to give a certificate to those who complete the entire course and we don't have an LMS. It is possible to track the user's completion of lessons if the lessons are divided into several different .story files without an LMS? I believe that if all of the lessons were in one .story file it would simply be a state change upon completion of each lesson, but the file would be massive and thus slow in many parts of the globe where internet is not "up to speed".