Privateer Press have posted a preview of the Hordes Reeves of Orboros Chieftain & Standard Unit Attachment.
From their website:
The Reeves of Orboros are capable hunters in their own right, but a reeve chieftain brings deadly coordination to a hunting pack. Under the totem of the unit’s battle standard, a chieftain orchestrates destruction of foes as well as clever feints to keep danger at bay. Enemies of the Circle know well to beware the woods, for there is no telling when a pack of hidden crossbowmen lie in wait.