Berserker
From the mail (11/29/2012)
Berserker troops are ready for their close up!
Boasting immunity to bullet attacks, these war machines are prepped for the vanguard of your offense. Though bullet-proof, these units greatly fear elemental attacks as found in the Incendiary, Corrosive & Telsa towers.
Unlock this new troop type in the Tech Lab for a smashing fun time!