You were one of the Stabilization Team ECHO that was sent to neutralize and contain the Subject in the Sectors 8-22, T-06-11-01 (hereinafter referred to as "Slacker") appears to have originated from the aftermath of E.W.H.W. (Location #22865026), wherein the experiment's Subject had been administered an incorrect amount of Prodynorphin

The Stabilization Team ECHO half of the Team was eliminated, and half of them were killed by the Slacker. Some of the Team members were getting eaten alive by Slacker, as you were only Last Member alive to neutralize the subject. Slacker was wandering around in Sector 8-22 while you were hiding

Slacker was giggling and laughing around in this Sector while finding you since he knew that you were the Last Person on the Team. Slacker keeps breaking down the doors and opening the doors around the place. You with the keycard, try to escape this Sector

"PREPARE TO DIE."

You turn around and see Slacker standing further away, staring at you before he raises his hand and then runs to you as you dodge it, and the Slacker's hand is breaking through the doors as it starts to chase you