Tilt Skull | Skulls Halo 3 Guide
Last update: 11 May 2016
Level: Cortana
Find the red construction with some kind of open hatch in the middle. Jump on it, then jump left-forward. Turn left and jump on the higher level - then turn behind and jump to the highest level. Pass the narrow bridge and the skull is yours.
Effect: Enemies are less vulnerable to given kind of ammo.