If you spend just one night in the abandoned FluxCorp research site F-RS-120, you're incredibly foolish. If you survive the whole night, you're either extremely lucky or you are invincible. You do not simply survive, because the Fluxeon do not play nice, and they are nearly unkillable, requiring highly expensive experimental technologies to be temporarily neutralized. To survive, you have to gain their favor, which is something completely unheard of. Still, there's plenty of unfinished experiments to be salvaged, and FluxCorp occasionally sends a monthly recovery crew down there anyways, and you do not want to be caught trespassing.