Unlike previous iterations of the GDI's iconic superweapon, the newest iteration of the Ion Cannon unleashes an EMP in addition to causing damage. It consists of six nodes that charge up individually over time. With each node that becomes charged, the weapon gains more damage and disables enemy units for a longer period.
The Ion Cannon has a total of six charge states, with the final state taking about three minutes to charge up. A max-charge Ion Cannon is capable of decimating any small and most medium-sized units caught in the blast, and anything that survives will be disabled for a significant period of time.
When present, zone captains' ion cannon attacks gain EMP effects.
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The Ion Cannon must be protected from any attack from an enemy and a patient player who want to wait a several time will get a great shot to the enemy lines.The Ion Cannon is weak against moving targets that a crawler can avoid these attacks easily. The fully changed ion cannon can devastate a large area of the battlefeild.
Several Achievements can be earned if the player uses it to destroy several targets with it and the player launches a fully charged ion cannon.