The Star Gate Fleet and Europa Customs thought the other party was there for a shift change; they were caught off guard by the surprise attack from SMS, directly struck in the face, unable to mount any effective resistance or defense. Most of the self-defense weapon system permissions were open to the attacker, making it impossible to organize a defense. Dorn's son directly attacked and disarmed the headquarters, and most of the fleet, gun turrets, and drones were destroyed without firing a shot.
Now the Dawn Knights were advancing as if entering an unoccupied territory, hitting targets with tons of guided bombs. These were not mines or nuclear warheads but simple metal-nitrogen and metal-hydrogen explosives used by miners. Without any high-tech penetration and guidance systems, simply aiming and firing at the target could unleash tons of damage, devastating Europa's various infrastructures completely.