Halo 3 Skulls

Unlike in Halo 2, where skulls were a last-minute addition, skulls are a fully integrated feature of Halo 3. After you've found one, you can activate it in the Campaign Settings screen of your pre-game lobby. Gold skulls offer achievements and campaign scoring multipliers, while changing the dynamics of the game, usually in favor of your enemies.

Silver skulls just do cool things.

Skullsort descending Submitter Updated
The Man With The Iron Skull: Part One narcogen 07.09.08
Thunderstorm NThro_Sraom 11.03.07
Thunderstorm Skull spartanNO117 12.10.07
Tough Luck narcogen 01.16.08