From their post:
Junker Dune Raider Decurion Code: 13637 Price: TBA
Dune Raider units are equipped with rugged quad bikes that are usually fitted with heavily modified versions of standard infantry weapons. These legionaries are generally employed for scouting out enemy positions, harrying isolated pockets of enemy resistance and providing support to the slower foot based elements of the army. These fast attack elements of the Junker Legions also have a well-deserved reputation for depravity, and mobile strike forces are often detailed off to pillage and despoil regions deep within enemy territory.
As is the norm in the Legions, Dune Raider Decurions have gained their rank through merit and many hard fought battles. They invariably lead from the front and will always be found in the thick of the fighting, or hunting out the richest loot.
The Junker Sand Raider Decurion model will be released as part of the Urban war February 2012 releases.