To turn on the skulls that you find on the campaign, just go to the main menu and go to campaign. Hit the x button and it'll take you straight to the skulls. to turn them on just point to the one you want and press the a button (it might ask you a question but just ignore it).
You have to go to campaign and press x.
press the X button on the campaign selection menu.
once you get a skull in halo 3 you can co to the campain options and turn it on different skulls do different things
Sorry there arn't any, The only skulls are in "Halo 3" Which are used in "Halo 3 O.D.S.T."
you can get all of the skulls on multiplayer. =)
They are skulls. idiot.
ok, go to youtube and type in "how to find all halo 3 skulls" then watch the video and get the skulls. yes, its that simple.
if you want to know where the skulls are all you have to do is go to youtube and put in "halo 3 odst mythic skulls" and it will show you how to get to them
find the skulls
There are no skulls in Halo Reach.
There is many silver skulls, look up a tutorial.
Find them your self