According to Josh Reynolds his new book "Eight Lamentations: Spear of Shadows" Will explore the world of age of sigmar from a ground level.
From Josh Reynolds
Blurb:
In the beginning, there was fire. And from that fire came eight weapons of terrible power, honed to a killing edge by the chosen weaponsmiths of Khorne. Now, as the Mortal Realms echo with the thunder of war, the great powers seek to acquire the eight wherever they might be found, no matter the cost. In a city of prophecy and secrets, Grungni, smith-god of the duardin, gathers together a group of mortal warriors from across the realms in order to locate the first of the eight weapons. But they are not alone in their quest; agents of the Ruinous Powers search for the weapon for themselves. Now the race is on, as man, duardin and daemon alike seek to claim the Spear of Shadows...
Big grey dude is Grungni, though he doesn't exactly look like that in the book.
The vampire is trying to steal the Spear of Shadows for death alliance.