From their website:
Fantasy Flight Games is pleased to announce the upcoming release of four new expansion boxes for Dust Tactics. Featuring new tactical options for your Allied and Axis armies, these primed, unpainted miniatures will take your game to a new level.
For the Allies, speed and versatility mean staying one step ahead of the enemy. With the Recon Boys and Gunners expansions, you can outfit your squads with the ability to adapt to nearly any threat.
Meanwhile, the Axis’ Grenadiers stand ready to reduce enemy armored units to piles of twisted metal. Their Battle Grenadiers and Recon Grenadiers pack a punch against the toughest foes.