Hi NilsFinkendk,
As per my knowledge you want to upload your Captivate content on your LMS and want to have reporting out of it .
Yes you can get the reports of different users. there is a setting that need to be done in Adobe Captivate By which you can enable the feature of reporting in your project (Assesment / Quiz).
Please Go to Edit >Prefrences>Quiz> Reporting
You can enable it from the option available and and can adjust the rest of the settings according to your need.
Please find the screenshot for more description .
After saving the settings you can publish your project and upload on your LMS
Thanks and Regards
Himanshu Satija