- "Caldwell! Hope you can hear this, because comms are screwed out here. Good job with the tether, systems are stable again. We're en route to storage with the Marker. Meet us there, OK?"
Cooper was the CEC manager responsible for the extraction operation of the Marker 3A. He started the operation with Banks and Bear and was briefly angered by Sam, Egan and Sterling's late arrival. When the Marker was removed from its pedestal, it activated and the shock wave destabilized the Gravity Tether 16. Cooper then sent Sam, Egan and Sterling to fix it at Megavent 24 while he remained with Banks and Bear to take the Marker to proper storage.
During Chapter 1, Cooper is heard through radio numerous times orienting Sam and hurrying him to fix the Gravity Tether as its failure could destroy a great portion of the colony. He lost contact with Sam short after he had managed to stabilize it, and is not heard from afterwards when Sam is working with Lexine Murdoch to restore the colony life support systems.
It is possible that Cooper was one of the miners killed by Sam during his hallucinations. Even if he managed to escape from Sam's murderous rampage, his fate is unknown considering the Necromorph outbreak that followed days later.
- Despite his role as a very minor character, it seems that Cooper had an incredibly high resistance against Marker Sickness; he stood close to an active Red Marker for nearly an hour and showed no symptoms whatsoever.