Hi Chee.Vang,
Our system doesn't quite work like the MDT system with some conditional logic but an Landesk algorithm will calculate the best match possible between the drivers available in the library and the machine. Articles https://community.landesk.com/support/docs/DOC-24415 / About HII Driver Selections can help you to give a better idea how the drivers are finally chosen.
You may assign several packages or .inf files, at the end, our system does everything for you. As said in article How to manage drivers using the HII tool"It is not required to assign drivers, auto detection and assignment of drivers will still occur for devices that do not have a specifically assigned driver." which could answer your answer.
Before applying effectively the drivers, you may use the HIICLient in preview mode to proceed to some tests and to know which drivers will be chosen by our algorithm against the machine (see https://community.landesk.com/support/docs/DOC-29066).
I understand that with MDT, we are the impression to control more things up, but our system helps to make the thing easier,
I hope it clarified things up and it will be useful,
Good luck!