How to fall faster
This video shows you how to get out of the campaign level “The Storm” on Halo 3.
This video shows you how to get out of “The Covenant” campaign level on Halo 3.
Here’s how to get an invisible warthog in Halo 3.
How to get out of Floodgate on Halo 3.
Here’s how to get a flying elephant on Sandtrap.
(No there’s really no elephant in Halo 3)
Learn how to get out of High Ground on Halo 3. (You must be in Forge mode to do this though 
)
You can find a guy in his underwear with his hands behind his head in Halo 3’s campaign.
This video shows how to get the hardest skull in Halo 3 - the “I Would Have Been Your Daddy” skull, aka IWHBYD skull.
How to get into a secret room on Last Resort.