Image Achievement Name: Iron
Iron Game Title: Halo 3 (Xbox 360)
Achievement Description: Find and claim this skull when playing on Normal, Heroic or Legendary difficulty.
Value: 10G Secret: No Online: No

Achievement Guide Edit

Sierra 117= At the end of the level when you free Sgt Johnson, Jump up to the catwalk behind and above the building. Follow it all the way to the end to claim your skull.

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