Here is supporting information for your Multirotorverse model:
LibrePilot
Introduction to LibrePilot (replaces Open Pilot)
http://www.librepilot.org/
Download: https://librepilot.atlassian.net/wiki/display/LPDOC/Downloads
Open Pilot
Download: http://drone-nexus.com/openpilot-downloads-for-cc3d-gcs/
Introduction to GCS (Open Pilot)
Cleanflight
Introduction to CleanFlight
How to install Cleanflight on CC3D