Gameplay

Metropolis (achievement)

From Halopedia, the Halo wiki

For the Halo 2 level, see here.
Metropolis

Metropolis is an achievement in Halo 2 for Windows Vista, and Halo: The Master Chief Collection. In the PC game, it is worth 30 Gamerscore and is unlocked by beating Metropolis on Normal, Heroic, or Legendary. In The Master Chief Collection it is only worth 10 Gamerscore, though it can also be unlocked on Easy.

In the PC game, it is represented by the head of a Jackal. In The Master Chief Collection it is represented by a screenshot of New Mombasa.