Heavy plasma cannon

The Aggressor-class destroyer's "weapon systems" or "weapons" were powerful plasma weapons. They would fire a blue EMP blast that would disable anything in the reach of it's shockwave, and lastly, an orange one that would cause a devastating explosion, destroying everything caught by the EMP blast. This answers the question as to why the captain of the destroyer says "Need a really big gun?" during space battles on Star Wars: Empire at War: Forces of Corruption.

Appearances

 * Star Wars: Empire at War: Forces of Corruption