Reporting a Storyline 360 Assessment score back to the LMS

I like to build game-based assessments using our Storyline 360 tool for our online instruction.  The options are endless and there is so much more opportunity to make the experience engaging through the use of a simple game.  The problem is I don't know how to program the course to report the actual score back to our LMS. We are only able to report a complete/incomplete score back to the LMS.  When an actual score is required, we have no choice but to use our LMS assessment tool. 

Does anyone have suggestions on how I can make this happen?  I would like to be able to report the score back to the LMS so we can report on scoring results for a given game. Thank you in advance for any suggestions you can offer.