You were running through the corridors of the NEST facility, frantically looking over your shoulder. There was something or someone chasing you. You couldn't quite place, what exactly it was. But the basic body was the one of a male human. A male human in a white shirt and a white lab coat and jeans. So you figured it was a former scientist in this facility. As you rounded a corner, you heard those low grunting sounds he made. And then you saw him. One of his arms looked fairly normal.