The TEC union Marza Dreadnought's special power unlocked at level 6 is Missile Barrage. It is very powerful, and hits everything around the ship for about 2,500 damage over five to ten seconds. It can easily destroy non-capital ships and severely damage buildings. To use it effectively, fly a Marza Dreadnought into the center of a cluster of enemy ships and use the Missile Barrage. This tactic works well against pirates.