The dropships slammed into the atmosphere in typical Imperial fashion, lifting their noses up perpendicular to the planet in order to position themselves so as to create as much drag as possible. Painting the sky in angry, red streaks, the Imperial vessels executed an extraordinarily difficult, high-G maneuver known as a combat drop, decelerating from hypersonic to subsonic speed in a matter of seconds, bringing their trajectory down so as to descend almost vertically on top of the structure below.
As they decelerated, several triangular shapes plummeted past them,
I-4V dive bombers targeting the relay's anti-air defenses with high precision air strikes,
Jericho sirens wailing their terrible, haunting songs as they cut a path across the sky, dropping ion bombs on top of the relay's air defense towers to take them out and clear a path for the incoming dropships, which dispersed chaff and smokescreens to make it harder for those towers that were still active to target them.
Within minutes, the blocky, rugged dropships descended upon the base in a three-pronged assault, two vessels landing at the entrance of the facility, while one assaulted the base's hangar and a fourth hovered above the rooftop, blast doors sliding open and releasing ropes upon which Tacitus, along with his Ultranauts and Combat Engineers rappelled down towards the ceiling, the latter swiftly deploying breaching charges to create entry points. Similar scenes unfolded at the entrance and in the hangar, the assault teams breaching into the facility using explosives and linking up with Imperial personnel already within.
This initial part was easy, however the facility had been designed to resist such an assault. There would be other blast doors past the first ones, much more durable and capable of withstanding explosive charges and even lightsabers, due to their sheer thickness. However, this would not stop the Imperials, who knew their way inside and out and had designed every system within the facility. On Tacitus' orders, the Combat Engineers swiftly popped open a few pannels and, clipping and repurposing some wiring, patched their own equipment into the base's security system, uploading programs into the facility's network that began to slice into its security features layer by layer. Soon, the Imperials would be through. And they would subject the rebels to a horrible fate, should they accomplish their objective to capture them.