This one’s pretty cool. You can get a ring of missiles going around a warthog, and it looks like a solar system or something.
How to get out of Tsavo Highway and drive a warthog under the map
This video shows how to make that scarab in campaign disappear.
You know that thing on your computer, where you can type anything and the computer will try to say it? The default voice for that is Microsoft Sam, and you can find a Microsoft Sam easter egg on The Covenant level in Halo 3.
Watch this to learn a powerup trick that can be used in matchmaking
How to hold the sword like a gun, and the turret like a chainsaw.
Put the banshees in the box thing and fly around…
How to play tank pinball in Halo 3.
This video shows how to clone yourself using a turret.
How to get far out of maps in Forge.