Good news for marketplace customers: we have confirmation that the mod also works for marketplace users. These mod improvements will be applied to: flight model, engines, camera system, autopilot, PiD values and external UI configuration. Improvements made to the HUD or MFDs will not be applied due to Microsoft DRM.
The installation procedure is the same: just unzip the folder included in the zip file into your community folder. Remove any previous mod you could have before.
Thanks @brokendigit and @MarkManner for the tests carried out, and thanks for giving us your confirmation about it working. We hope that users of the Marketplace can enjoy it too.
Edit: Ok, after talking in private with @ACTRAD7324, this solution won’t ever work for those MSFS2020’s steam users who purchased DC Designs - F-15 Strike Eagle (C, D, E & I) through marketplace. I will try to look another way to make mod being compatible with this particular case.