U.S.S. Chicago is a submarine in Call of Duty: Modern Warfare 2. It was seen in "The Only Easy Day... Was Yesterday". It was part of the Sixth Fleet leading the counterstrike on the oil rig. Captain MacTavish's team, Hotel Six, was launched to the oil rig out of the U.S.S. Chicago and met up with Team Two out of the U.S.S. Dallas.