Hi Scott,
I'm not from DC Support but I just install Office with this command:
\\SERVER\DCSWRepository\MicrosoftOffice2016\setup.exe /adminfile \\SERVER\DCSWRepository\MicrosoftOffice2016\adminfiles\Silentinstall.MSP
No Pre or Post activities needed.
I have never
heard/read of the "
7za.exe
x-y Office2010Pro.7z" part you mentioned..?