Battlefront has a preview up of the new Heavy Tesla Bunker (up on the GF9 website).
From the preview:
As the war grows ever deadlier, soldiers have come to rely on the safety that battlefield fortification can provide. This box contains a modular plastic kit designed to create bunkers and strongpoints that can be outfitted with either the Single or Dual Heavy Tesla Guns. Hold the line with the SSU Fortification pack!