"Alert! Alert! A transit signal has been detected at Gravity Well No. 1! A transit signal has been detected at Gravity Well No. 1! Identified as the Demon Dragon Fleet! All fortress personnel, report to your combat stations and prepare to defend! Repeating: all fortress personnel, report to your combat stations and prepare to defend!"
The fortress central AI's electronic announcement echoed over and over through the corridors and compartments of the vast fortress. In reality, though, the defenders had already taken up their positions long before the alarm began.
Of course, they hadn't done as the AI wished and reported to the dispatch centers for the gun turrets and fighter platforms. Instead, they had donned their armor, loaded their weapons, and gone into the corridors and compartments to fight monsters that had somehow infiltrated the fortress.
Yes, the last line of defense protecting the imperial capital had already been invaded by a vast number of alien insectoid monsters, though no one knew when. Compared with the exterior, bristling with turrets and protected by six layers of shields, with fighters and gunships providing cover, the fortress interior's defenses were pitifully weak.
Countless grotesque insects, their eerie chitinous shells glinting with a cold light, had gathered into a black tide of destruction. They relentlessly crashed against the fragile dam formed by armored vehicles and guns spewing furious streams of fire.
"Reinforcements! We need reinforcements!" the grenadiers shouted for help, their cries echoing through the narrow passageway and even drowning out the roar of gunfire.
Their electromagnetic rifles spat flames as they tried to seal every gap through which the charging Zerglings surged.
But these low-level insect units seemed like biological automatons without a trace of emotion. They pushed forward through the torrential hail of bullets, their sharp limbs clacking against the