The following articles might be helpful to create the deployment package:
https://support.microsoft.com/en-us/help/934307/description-of-the-windows-update-standalone-installer-in-windows
https://kb.cscc.edu/article/how-to-install-a-msu-update-on-windows-7-from-the-command-line-63.html
Also the installers do have commands you can use: