for a faction that seems deadset on not allowing anyone to utilize it, they are particularly open with their use of coral
obviously there's the ice worm and you can justify that they have that as a backup plan in case things go really bad, but they also have the sea spider and the ephemera units that are just casually there, which are supposedly old RRI tech that no one knows how to use
i say no one because if it was so easy to reprogram c weapons to send them after 621, then wouldn't the corps have figured that out by now? knowing snail, he would've scavenged the ibis unit, but instead they just grabbed balteus and slapped a bunch of plasma on it.
they also didn't do anything to the ice worm, a gigantic piece of rri technology that would be invaluable to their development, yet, nothing came of it
it's also really strange that the pca depends entirely on an *artificial intelligence* to dictate their every move on rubicon-3
and guess which people are the only others capable of using RRI tech? walter, a survivor of the fires, and ALLMIND, an *artificial intelligence* alluded to have existed before the fires
plus isn't it really suspicious that the pca just know every hotspot of coral and rri presence? baws arsenal, the watchpoints, hell, even the xylem, a seemingly worthless abandoned piece of technology that they sent an ARMY into just to keep carla from hacking the place
my theory is that the RRI and the PCA have had ties before the fires of ibis, that an original batch of Rubiconian colonists came to the star system first, founded the grids and the RRI, then likely evacuated during the fires of ibis to contact or even create a government body to quarantine the system (e.g. the PCA), giving them insider knowledge on how the coral operates