Recently, I built and published the Dell driver update script that may or may not require a reboot. I instituted the script as a task sequence in MDT and then made the following task sequence a reboot. Thinking about it, the reboot may not be required and therefore that would be a waste of time.
If you spend a lot of time creating ConfigMgr 2012 R2 OSD Task Sequences, you probably have a method for inserting the steps and groups that you like to use in every TS you create. Maybe you open a reference TS up and copy and paste steps into a new TS that you are creating.