Mario,
This KB was published a little while back and should answer your questions
https://kb.vmware.com/s/article/2105428https://kb.vmware.com/s/article/2105428
the TL/DR version
- Yes, the capture machine should also be a 2012 R2 RDSH host
- Yes, you will want to run 'Change user /install' during App Stack creation and 'Change user /execute' before closing out and saving the session
Hope that helps