Planet WarShip Defence

The evil Blackguard plan the plundering of the earth's resources.They are going to put the earth as a beachhead, dominates the universe.They sent out warships carrying a large number of bomb attack earth.The combined fleet received orders:To prevent the enemy from outside the solar system.Star fleet set Mega defense artillery in the enemy via."Boom!Boom!Boom!" Battlefield voice resounded through the whole star.The Legion of evil to the earth as a beach head disillusioned.Battle hints:To prevent the enemy from the rational use of various artillery.Often transform artillery position.To gun loaded auxiliary equipment properly, improve power.