Using the direct mental interface built into his Ghost armour, 57 had already requisitioned the drones. Like great vultures, three giant rings of metal hovered above the area around the base, a great Plasma Drill hovering in the center of the drone. This massive device would focus the immense heat of plasma into a single beam, allowing it to melt holes deep into the Earth, through barriers of stone, metal and even diamond. Each of them was already forming the electromagnetic field that would contain and fire the plasma, ready to activate on 57's signal, and drill straight into the underground base.
In the center of the three Plasma Drills hovered an Owl-class vessel, a relatively small drone equipped with an advanced sensor array. An even smaller drone was shot into the ground, attaching itself there, and using a series of subsonic waves to map out the basic external structure of the base, and where to aim the Drills. Infrared scans attempted to get a clearer picture of the grouping of lifeforms inside the base, and for the duration of the combat, the vessel would maintain an image of the battlefield, displaying all the acquired data directly inside of 57's brain. Of course, for the others, they'd have access to it in a HUD.
Even as several guards moved out from the single entrance, having detected the power output of the Plasma Drills, they were taken down. Shot after shot landed, striking them down the moment they entered 57's line of fire, expertly placed and timed. His massive railgun had an enormous range and great punching power, the shockwave from impact literally tearing apart the target's body from the inside. Organs were ground to pulp, bones shattered, all without ever touching the actual bullet. Using anti-personel hollowpoint munitions, 57 ensured the maximum amount of damage to the body, and combined with his inhuman accuracy it was a barrage of death from afar.
Already, Drone Carriers were heading to this area, ready to deploy a Strike Squad. He would provide ranged support until the Plasma Drills fired, and then enter the base, backed up by Tyler and Arcanus. Their job would be to eliminate the command structure, break enemy morale, and ensure a swift surrender. The two other holes would serve as entryways for drones, distracting enemy foces and dealing damage to their infrastructure. With merciless efficiency, he would eliminate anyone who dared oppose Helios.