Iron Skull Effect: If you die, the mission restarts. If you’re playing co-op, the whole team restarts from the last saved checkpoint
Iron Skull Location
The Iron Skull is found at the very end of the first level, “Sierra 117″. It is located behind the building where Sgt. Johnson is being held captive, up on the roof. You can gain access to the roof on the far right side of the building. Travel all the way over to the left side of the roof, and the Skull will be concealed in the corner.
Achievement Icon: A skull marked with a stylized drawing of a hammer
Point Multiplier: 3x
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