This page contains Halo 3 Hints for Xbox 360 called "Skulls" and has been posted or updated on Sep 27, 2007 by max11210. Let us know what you think of this Hint by thumbs voting.
You can only claim/collect the skulls under the Normal, brave or Legendary difficulty settings. You must start from the beginning of the mission. You won't be able to see the skulls in the event you load from a checkpoint. In coop mode, as shortly as one player picks the cranium up, all players will receive the achievement. Not all skulls earn an achievement; only nine of them do so. to make use of skulls, press X at the lobby screen. This will give you a bonus multiplier for coop & go towards earning the Guerrilla, Demon, etc. achievements.
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