The online arenas as well as campaign story spoilers were discovered in the shooter's beta and posted on se7ensins forums (via CVG).
The list excludes the previously confirmed Nuketown 2025 map, which is a pre-order bonus, while the 'Yemen' map shown at gamescom is now being referred to as 'Socotra'.
Announced earlier this year, Black Ops 2 is set during a 21st-century Cold War where a robot drone force invades Los Angeles.
Multiplayer will utilise a new scoring system in place of the traditional killstreaks, with dozens of rewards on offer for high-scoring players.
Revealed at gamescom, core streaks have been incorporated to allow players to rack up bonuses for completing objectives as well as making kills. Capturing flags, defending teammates and earning assist points will boost the metre significantly.
Bonuses include the option to call in vehicle support, which includes assistance from high-tech machinery such as VTOL Warships, Lodestars, X9 Units, the Humvee-esque Guardians and more.
Black Ops 2 will release on November 13 for Xbox 360, PS3 and PC worldwide. A version for Wii U was recently confirmed by Nintendo.
> Read our preview of Black Ops 2
Watch the Call of Duty: Black Ops 2 multiplayer trailer below:
The list of alleged Black Ops 2 maps is as follows:
Carrier: "Chinese Supercarrier. Open engagements on the deck, with great close quarter fights through the hull."
Cargo: "Port of Singapore. Good for close quarters engagements and verticality."
Drone: "Hidden drone facility in the heart of the Myanmar jungles. Great long engagements down the centre, fun close quarter fights through the facility."
Express: "Los Angeles bullet train station. Good long-to-medium engagements up and down the bullet train tracks."
Hijacked: "Luxurious super yacht. Frantic, yet controlled close quarters engagements.
Aftermath: "Set in a ruined downtown Los Angeles after an invasion."
Meltdown: "Pakistan nuclear power plant. Battle for control of the nuclear cooling tower and the surrounding facilities."
Nightclub: "Floating resort in the middle of the Indian Ocean. Tight corners and angles throughout."
Overflow: "Peshawar, Pakistan. Great urban engagements in the flooded streets."
Raid: "Fight through this hillside mansion, in the Hollywood Hills. Hectic close quarters engagements."
Slums: "Run down section of Panama. Great close quarters engagements and tough chokes to fight over."
Socotra: (Update - originally "Yemen" as seen in the Black Ops 2 gamescom live streams) "Urban streets of Yemen. Tight alleys and close quarters engagements."
Turbine: "Wind farm in the steep hills of Yemen. Fight across the different tiers and angles."
Village: "Border town between China and Kyrgyzstan. Classic engagements and destinations to fight over."