Are there any campaigns that bother with the Dead Men of Dunharrow/The Oathbreakers? I never played the game or pay attention but I wouldn't mind trying it just wanted to know.

Yes.

There is a Standalone scenario that comes with no player cards (just a quest to play against) called the Stone of Erech.

Also, The Flame of the West saga box (saga boxes string together to form a campaign) has two quests with them in it.

I think those are the only ones. One important thing to know is that to play any of these expansions you need at least on Core Set (max three) or the Limited Edition Collector's two-player Starter Set. Hope that helps.

38 minutes ago, CEOWolf said:

Are there any campaigns that bother with the Dead Men of Dunharrow/The Oathbreakers? I never played the game or pay attention but I wouldn't mind trying it just wanted to know.

I answered this exact question for you on Discord yesterday, my man

As mentioned, there are 2 quests dealing directly with the Oathbreakers. There are 2 entire cycles, however, that deal with the Undead. Both Angmar Awakened cycle and the Grey Havens cycle have several quests featuring ghosties and ghoulies.

The Stone of Erech in particular is a classic (one of the best scenarios ever IMO). Well worth purchasing.