Must be a bug or there must be greenskins (another tribe maybe?) elsewhere as I had the quest on 4 factions (VC, Orcs, Tilea and BP's) and the moment I defeated them it disappeared.
I decided to start a campaign as Orcs, holy **** they are fun! Totally different from Dwarfs and you will get spanked unless you heavily out number them but once you get going
my lord Grimgor on turn 40 is already level 17, I've reduced the dwarfs to 1 city already and I'm just hurtling around with Grimgor fighting anything and getting Waaghs behind me all the time.
My army is just basic Boys, with the Blavk Orc and Boar Boy unit you start with and I haven't lost a battle. Beat the dwarf King 3 times, Ungrim turned up and beat him twice I'm going to do a lap of honour and mop up the southern badlands pretty swiftly (is my thinking anyway
) then turn north all guns blazing.
Great faction!!