Golden skulls unlock (other than achievements), ways of making the campaign more fun/difficult, for example, the skull Black Eye means you have to melee an enemy to regain health and the skull cowbell means explosions do more damage and are bigger.
Also unlocking all the skulls (gold and white) will unlock the prestigous Hayabusa armour
the fog skull takes away your radar. you find the skull on floodgate
search it on youtube
Please visit the Gamespot game guide for Halo 3. There you will find all the locations of the Halo 3 skulls.
you need to be playing on normal,heroic,legendary to find any skull on halo 3
grab it and you get an achievement
No
The first skull on halo 3 is a silver skull. Silver skulls do not award any achievements.
After finding a halo 3 skull, simply pick it up as you would any other weapon.
once you get a skull in halo 3 you can co to the campain options and turn it on different skulls do different things
13
http://www.halo3planet.com/halo-3-skull-locations/ is were I found them
You do not jump through rings to get the tilt skull in halo 3.