Slay Sorlof using the Big Gun and recover Sorlof's Booty. Return Sorlof's Booty to Captain Ellis aboard the Sister Mercy.
Me crew is gonna get the big'un all primed an'ready for ya, matey. She's restin' snuggly on the bow, o'er on the other side of the ship. Go'n man it and be ready to fire when Sorlof is in our sights!
Once we take that landlubber down, ye'll have to recover the booty for us, seein' as how we can't leave the damned ship! Bring that booty back to me and ye'll get your cut - the shield...