Ascension is the seventh zombie map in the zombies installation. It was released in the First Strike map pack for Call of Duty: Black Ops. This map is set at an abandoned Soviet Cosmodrome. The Original Cast returns, along with several unique features, including lunar landers, the sickle (which replaces the bowie knife), the two new perks Stamin-Up and PhD Flopper, Space Monkeys, and a large easter egg known as the Node Puzzle, or Kassimir Mechanism.