In AD Audit you have the ability to check the Audit Policy Status.  (https://adaudit.server.internal/#/admin/rsop) This indicates what is required. 

If you follow the link on a report to troubleshoot missing data you get taken to the help files where a different set of Audit settings is given.  
https://adaudit.server.internal/help/troubleshooting/troubleshooting.html#nodataans

Which is correct? 
Why are some settings listed in the help page no longer needed? 
(eg Object Access - Application Generated,  Object Access - Certification Services, etc)