Deadly Bosses of the Commonwealth
If you want to spice the Commonwealth up a little bit more than that (that being the Deadly Raiders of the Commonwealth mod), check out Deadly Bosses of the Commonwealth.
Deadly Bosses of the Commonwealth is still in beta but the product the developer has out right now is pretty amazing. Like its name suggests, the mod adds some new and exciting bosses to the game. Currently, there are eight different bosses, each with their own weapons and features.
Each boss poses a unique challenge to the Sole Survivor. The mod is worth a download if you're looking for some additional challenges during your playthrough.
For more info, take a look at the video below.