By tracing the signals the Nexus necromorph received, SCAF researchers were able to pinpoint what they believed was the source of the marker signals and the location of the machine - beneath a mountain a little way away from Facility One. To investigate the machine they constructed Facility Two atop the mountaintop and started digging a shaft to reach the buried machine. Meanwhile, recovered frozen necromorph samples were experimented upon and studied. At the same time, an intact Alien specimen was studied to find our more about the Aliens which had possessed so many Markers.