System Rho Terra
Unnamed Gas Giant
A lot of things happen all at once. You send the acolytes dodging back and forth to avoid incoming fire. You have the resource drone dart back through the corridor to the first cavern. You have the other resource drones begin removing the plate from the borehole entrance. You drop maintenance bots by the Kushan and Kadeshi lines to hack into the turrets. And you open a line to the other members of the flotilla.
"I've got hostiles in the megalith. We're going to need more drones down there."
"Right, I'll start the fabbers up."
"What's the situation?"
"Looks like some kind of anti-ship ground vehicles."
Of course simple words are only part of the conversation. All five of you are tapping into the drone feeds and assessing what is going on the rapidly widening number of fronts.
"I'm going to get that drilling platform out of the way, so we can get down the borehole if we need to."
"Give me drone control. I'm a better pilot than you."
"I'll take half of them as well. That way we won't spread our focus as far."
"Okay, I'll deal with the base camp situation then."
There is a flurry of data transfers as you transfer control of the drones to Iuno and Ulysses. The entire conversation takes seconds. The drones have barely started your assigned evasive routines when Iuno and Ulysses both have their trio break up and follow their own patterns instead.
A mass of metal is ejected from Aurora, the half finished ship airlock, and she instead sends a flight of resource drones down the borehole to move the drilling platform. A steady stream of acolytes and cherubs from Laverna joins them.
You take it all in for a few seconds and turn to your own task. Hacking the turrets. "Leli, Gergal, distract the turrets for a few seconds." You hear their double acknowledgement, but how they go about it is very different. The Kadeshi flash construct several of their own drones and send them forward to serve as decoys. While the Kushan simply intensify their own fire. One of them brings forward a rocket launcher and starts bombarding the turret positions. That makes getting the drone into position a little tricky actually, but fortunately you dropped in spares.
Under the cover of both of your allies you manage to maneuver your drones forward and quickly carve into the access ports of the turrets. The actual hack is laughably easy. These are civilian grade weapons. What's a little more complicated is that whoever set the turrets up anticipated hacking and each one is isolated. So you have to carefully creep your bots from turret to turret while your allies reposition themselves.
There is a tricky point when your bots get to close to one of the holes and a mech erupts from the rocky dirt. It's some kind of construction bot that has been hastily armored and it crushes your bot with a huge manipulator claw. Fortunately the Kushan still have their rockets and the mech is quickly bombarded into scrap.
This happens two more times as you disable turret after turret until you are finally within reach of the command building. You have a hunch that there might be survivors in there. After all, you have not been attacked by the twisted husks of still living scientists up here. So instead of assaulting the building you have a bot hack into a wall panel and you take control of the interior cameras.
There's a group of salarian nervously watching the door armed with a makeshift selection of pistols and mining tools. Of course that doesn't rule out mind control, but these are the only intact scientists you've found. So you don't want to have your allies rush them after all this.
Instead you contact Iuno, "Hey Iuno, I've got some survivors up here. Can you switch with me."
The response is matched with an emotional overlay that you read as disgust and some fear, "Yeah. Yeah have at it. These things are vile."
You smoothly swap control of the drones with Iuno and find that they are in the middle of battling a twenty meter tall monstrosity with plasma turrets studded all over it. You direct the acolytes to destroy the turrets as you aren't sure where the weak point would be on such an ungainly thing, but as they attempt to do so one gets clipped in the engines and spins out of control into a wall.
The remaining two finish the job, but another acolyte takes some damage in the process. And once they are finished they are instantly under fire from two smaller flesh walkers. You destroy them both with quick ion bursts, but while you are concentrating on them a massive bolt punches through the already damaged acolyte destroying it. You focus on where it came from and find that some kind of siege railgun has been moved into position on five wobbly legs. You can't leave that alone or it will destroy all the remaining acolytes far too quickly. Fortunately the rail gun's tracking is poor and you have your last acolyte evade its fire while destroying it.
However this in turn draws the acolyte to the far end of the cavern where it comes under fire from multiple walkers of all sizes. In the seconds before it is destroyed you make note of its sensor logs. They are showing a powerful energy source coming from a mound of twitching bodies. And better yet you spot an access port sticking out from under that mound. Or perhaps the mound is using the port. Frankly you aren't sure. You didn't get a good look before the acolyte was destroyed. And you honestly don't want to get a good look. You can sympathize with Iuno's disgust.
You register the last of Ulysses drones being destroyed as well. Then there is a tense wait as the walkers begin firing into the plate you sealed the inter cavern corridor with. You can calculate exactly when the reinforcing drones will arrive at the bottom of the borehole, but you can't see the other side of the plate. You can't tell how fast the walkers are burning through it.
The answer as it happens is just a bit faster than the drones. The plate melts while the acolytes and cherubs are still several minutes away. In desperation you throw the resource drones into the walker line. They aren't terribly effective at bringing the walkers down, but you're sure that using their PDAs to vaporize the scientists who are still mostly intact is a mercy anyway.
The last of the resource drones is still fighting when the reinforcements finally arrive, but you don't bother withdrawing it. Instead you order a squadron of cherubs to fire their torpedoes. Never has watching a shoal of fusion torpedoes turn a target area into an overlapping hellscape of fusion explosions felt so cathartic.
When the bombardment is done nothing is left of the walkers on this side of the corridor. The organic masses have been vaporized as well and for the first time you can see the underlying structure of the megalith. The bluish metal is outlined by pulses of energy that actually seem to be speeding up now that the growths have been removed. You wonder if the organic masses were siphoning power somehow. That would explain how they could survive in space.
Another walker tries to push through the corridor, but your acolytes make quick work of it. Now you're the one with the numbers advantage. The problem is the bottleneck works both ways. You can clear the corridor itself by firing from this side, but anything that tries to fly down it is going to be exposed to fire at the other end.
You pull your awareness back from the cavern siege and ping Iuno and Laverna, "Any luck finding out what happened here."
"Well they do seem to be survivors. They say that a lot of the scientists got turned somehow and started massacring the others up in the station. They survived by being in the base camp."
"Yeah, that tracks with the station's log. It looks like the scientists closest to the artifacts got mind controlled and started bringing in others to the artifact surreptitiously. Once there were enough of them they launched a coup, and seized the station. Then they gathered up all the bodies and went down to the megalith. I guess we know what for, huh."
"What about the obelisk. Has it changed?"
"Well yes actually. It started trying to get access to me through hyperspace. I stopped it of course, but then I jettisoned the obelisk and used the station's guns to destroy it. I figured we didn't need to deal with any more tricks up here with all the craziness down there."
You are momentarily miffed that she didn't consult you, but it quickly passes, "Yeah, that's probably for the best." You loop Ulysses and Aurora into the channel. "I saw an access port for the megalith before the drones in the far cavern were destroyed. I think we're going to have to get to it, but what do you all think?"
What is the final consensus?
[ ] Nope, Nope, Nope
You're just a small flotilla of young Bentusi and a handful of allies. Aurora will fabricate a passenger liner for the survivors and then all of you will head out to go grab some reinforcements from the nearest Sentinel base. The megalith doesn't look like it's going anywhere. You don't have anything that you need to put your lives on the line for here. This is just a random archaeology expedition an alien minister asked you to look into in your free time. You've already saved what few survivors there were. You don't need to be the one to deal with the rest of it.
[ ] We Have Reserves
So far all of the walkers seem to be made out of scientist parts. It's a bit gruesome, but for some reason they don't seem to be making walkers from the other organic tumors. Is it a question of freshness or something else? You aren't sure, but regardless there were a limited number of scientists so there are a limited number of walkers they can throw at you. On the other hand Aurora and Laverna can keep making drones indefinitely. Unless they pull some kind of trick you will win this numbers game.
[ ] Full Frontal Assault
You don't want to give the meat things time to pull out something tricky. Or worse activate the rest of the megalith somehow. The thing is the size of a moon after all and filled with an unknown amount of ancient technology that might or might not be working. Take the initiative and don't give the tumor creatures the chance to do anything with it. Yes, whatever that comes out the other side of the corridor will be hit by everything, but this is the kind of situation your defensive fields are made for. You'll go down there personally and fight in the megalith yourself. Ulysses will come with you of course along with legions of drones.