Bungie confirmed the legendary ending (skip to 12:47)

But apparently none have been found. So far, all the endings on all the difficulties are the same.  But, maybe we haven't tried everything yet? Has anyone collected all the datapads?

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WHAT WE HAVE SO FAR

*Note that Bungie's favorite number is 7 (a lot of theories come from this).

BOBS- The nickname bungie has given to a special class of Elites in campaign mode. They are Ranger type elites with golden armor.

They are assumed to be in all campaign levels. The ones that have been found are listed in this thread.

HIDDEN SWITCHES: Hidden switches have been found on some campaign levels. Some of these activate easter eggs, others appear to do nothing. Maybe there are 7 to be found (of the ones that don't do anything)?

UPDATE-Hidden Switches on Sword Base activate warthog race minigame.

UPDATE-Hidden Switches on The Package make 4 banshees appear. The point of these banshees is still unknown.

^^^Check Achievement Hunter for videos of these.

Brought up by Sidaman13

ok watchin the credits it has bob O'donnell and he does the voice for terminals i have not found any.

has anybody found any terminals?

yo tirkot, apparently terminals in this game are the data pads. And ill definently do some of this stuff and hope to find anything that would help ya out. Thx for posting this

yo i found 2 golden elites and took screenshots and recommened it check em out there cool

and i found all the terminals.hahaha

Was it hard?

well, those pics u gave me made it hell of a lot easier man. and the terminals are easy but require two people. on the level when u defend halseys base, theres a switch and its very low on the gournd and if u touch the ground u die. so u jetpack and u will die so u have a nother person to spawn off. then 5 general sword elites coem but u run them down with a ghost!!! hahahah and then u get the goodies. ill send u a vid alright peace man