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PPG-7 plasma cannon

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The PPG7 plasma cannon (also known as twin cannons) are the standard on-the-move armament for the terran siege tank. They came in 80mm and 90mm variants.

The 80mm twin cannon was developed by the Terran Confederacy as part of the Arclite siege tank. These were designed to serve as a mobile artillery platform and a "final defense" security cannon,"[1] but were overshadowed by the tank's primary shock cannon.[2]

The 90mm twin cannon was developed by the Terran Dominion for their new Crucio siege tanks to improve their ability to fire on the move.[3]


  1. Barba, Rick. StarCraft Field Manual (hardcover). Insight Editions, November 17, 2015.
  2. Underwood, Peter, Bill Roper, Chris Metzen and Jeffrey Vaughn. StarCraft (Manual). Irvine, Calif.: Blizzard Entertainment, 1998.
  3. Blizzard Entertainment. StarCraft II: Wings of Liberty. (Activision Blizzard). PC. Mission: Wings of Liberty, The Dig (in English). 2010-07-27.

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