This is the Helios class ion plasma cannon. It is a new heavy weapon for the Earth Alliance. It is specialized to deliver high energy, high velocity pulses of ionized plasma. The Helios is especially effective against bio-armoured ships.

First, helium plasma collected from the reactor system is injected into the plasma ionization chamber. The plasma is then ionized by running a charge across the plasma separating the electrons from their nuclei. The nuclei are then launched at the target ship at high speeds by electromagnetic forces. The electrons are also fired at other ships (so as to not cancel out the net charge) in the same manner. This weapon can be discharged at a rate of 0.5 pulse/barrel/s. The Helios also has an aspect seeking system and a gravitational field detection system, so it can automatically track targets trying to jam the ship's sensor system.