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The CMS Greely was a Sovereign Colonies Armed Forces research vessel that was left abandoned in the flotilla around Tau Volantis following Scenario Five.


Dead Space 3[]

The CMS Greely was a research vessel that was a location available when Isaac Clarke was venturing to the CMS Terra Nova to repair the CMS Crozier. When Isaac ventured outside the CMS Roanoke, he began to pick up a signal of unknown origin: a looping message that was mentioning a code, "Papa Sierra". Jennifer Santos realized that the signal was being generated from the Greely, and the ship became an accessible location for Isaac.

Entering the Greely started an optional mission. Upon venturing into the Greely, Isaac was met with a security lockdown locking most of the doors and a power outage. After turning the power on, Santos told Isaac that the lockdown originated from the Greely's radio room and, after disabling the lockdown, an audio log revealed what had caused the power outage and security lockdown: Dr. Barton was broadcasting a coded message to Tau Volantis, but was caught by the S.C.A.F. soldiers during the Scenario Five order. When the soldiers attempted to interrogate the others, they locked themselves inside with the broadcasting equipment. Since the order was to ensure that no one lived, they cut the power in order to disable the life support and stop the broadcast. 

Upon further exploration of the Greely, Isaac found a room with an overloading power generator and disabled it, overloading some of the gravity plating. The further investigation of the room revealed a key and an audio log by Laura Engstrom pleading for Barton to send the coded message to Dr. Earl Serrano or all of their work would be destroyed. The key opened Engstrom's office, so Isaac decided to head for her office to decrypt the coded message. Because the power generator was disabled earlier by Isaac, some of the gravity plating was overloading on the way to Engstrom's office, making backtracking more difficult. Upon reaching the office, it was revealed that "Papa Sierra" meant "Hide Rosetta". When talking about it with Santos, Isaac believed that the research involving "Rosetta" could be a key factor to the mission, which prompted Santos to question why they would issue the cleanse order if it meant destroying Rosetta, and Isaac figured that they either panicked or knew something that the others did not. Afterward, Santos thanked Isaac for looking into the Greely, and Isaac continued the mission that the player left off.

Later in the Chapter, after Isaac went to the Terra Nova, he had to venture back to the CMS Greely and salvage a port side engine from a destroyed shuttle. After getting the engine, Isaac returned to the Roanoke and the Greely was left in orbit with the rest of the ships in the flotilla after Isaac and the other survivors launched the shuttle to the surface.


A modified light frigate, the CMS Greely was a medium-sized support ship that had no permanent armaments and only a moderately powerful engine for orbital maneuvering. It was divided into two distinct sections, much like the CMS Brusilov, with the aft section containing the primary life support systems, engines, and crew quarters, and the fore the main sensor array and a multipurpose array of halls and storage areas that could be adapted for virtually any purpose. The ship also had a small cradle amidships, on the ventral side, with an extensible docking hatch for transferring large size goods, and an extensible boom on the front ventral side, with a pincer at the end.

The main airlock was located in the aft section, on deck five. The connecting corridor led to the upper hall, with a view of the fore section connector and a Suit Kiosk, with a ladder leading down the main deck, deck three. The main hall connected all the areas of the ship, acting as its hub. A large corridor led to the fore section and the main areas (on the CMS Greely, these were converted into research laboratories through judicious use of tarpaulin and water-resistant tarps to shield the walls). To the side were the lavatories, with toilets and two showers for use by the crew, right next to a staircase descending to deck 2 and the life support systems (which could be activated through an emergency Kinesis-enabled generator).

In the rear of the aft section was the main communications center, with a service elevator to the life support section and a mess hall (where enlisted soldiers were expected to make room for officers when at capacity). Notably, due to the sensitive electronics, RIGs were to be silenced upon entering the comms room. Finally, lining the portside were crew quarters with bunk beds, sinks, and space for personal belongings and electronics.

The forward section was accessed through a corridor lined with resistant tarpaulin, and contained a single large hall and further facilities, sitting on top of an expansive storage deck. The hall itself could be adapted for multiple purposes, but was generally intended for research or engineering purposes, as indicated by the slogan "A man should look for what is. And not for what he thinks should be" printed above a large reminder that smoking was forbidden in the forward sections. On the Greely, the hall was adapted for analyzing slices of frozen Tau Volantis aliens and other biological samples. Machines for arranging and scanning these slices dominated the center, surrounded by a framework with floodlights, and satellite workstations were adapted for analyzing samples using microscopes and UV lights.

A cargo elevator led down into the storage areas, kept at a chilly -2 degrees at maximum (with prominent notices informing that the temperature should not exceed that level, expressed in Kelvins (271 K)). On the Greely, the storage areas were filled with biohazard containers for storing samples and wound through the fore of the ship to the gravity inducer and a general purpose area. During the Scenario Five contingency, Laura Engstrom and surviving scientists barricaded themselves in this section, damaging the gravity inducer to provide an impassable electric barrier. Using radio equipment taken from the rest of the ship, they set up a beacon, patching into the front communications array, and broadcast a message to Dr. Earl Serrano planetside, telling him to hide "Rosetta" from General Spencer Mahad and his troops.

After a captured scientist refused to budge, even under torture, Mahad ordered his men to let the scientists to their own devices after disabling the ship's engines and life support. It was in this state it was encountered by Isaac Clarke, who boarded the ship to investigate its signal.


  • Following a common theme, the ship was named after an officer of the United States Army and a Polar explorer, Adolphus Greely.
  • The Greely was a research vessel of the same size as the CMS Brusilov and smaller than most of the ships in the fleet.
  • The CMS Greely was an optional mission location in the game and it was up to the players to venture inside.
  • The Greely reuses the model from the CMS Brusilov.
  • A scuttled shuttle was near the Greely and the port engine was taken for the CMS Crozier.
  • According to the SK-1P, the Greely's alias was "Think Tank".



See CMS Greely (optional mission)


See Also[]