A dangerous extremist group that believes humanity should abandon Europa and return to Earth. They are deeply eugenic and elitist, and plan to aggressively reduce population, seize resources and infrastructure, and then build a massive escape spaceship. It is estimated that 97% of Europa's inhabitants would be eliminated in this process.
They are enemies of the Europa Coalition because they compete for resources and infrastructure.
They are also enemies of the Jovian Separatists, who advocate democratization.
They are on worst terms with The Church of Husk, who aim to coexist and merge with the Europa ecosystem.
Children of The Honkmother make fun of them, saying, "They're boring."
Cooperating with them is not an option for the submarine crew. To them, the submarine crew, who are contributing to the peace and stability of Europa, are nothing but a nuisance.
They will interfere and try to sabotage the various missions the submarine crew is attempting to accomplish. At times, they may (foolishly) barge in while the submarine crew is being hunted for an Endworm.
When they are successfully subdued, none of the four existing factions will lose faith in the submarine crew.
They are similar to the "pirates" that once existed in Barotrauma, but with a more political element. If we were to compare them to other games, the closest would be the Enclave from the Fallout series.
I don't think they need a mission centered around them. Their sudden surprise appearance during a normal mission is enough. They're just some damn bad guys that crew can eliminate without any qualms.