The greed of Dwarves always leads them to their doom.
I would really like to see this as a story introduction to a campaign. You know the BBG are multiple, powerful and dwarves, so stubborn as hell.
The flow was really nice
I've been playing Dwarf Guilds a lot in my Firefight games (and winning a lot with them, too). I definitely enjoyed putting them in their place a bit - it's grimdark, after all! Did we expect a happy ending?
