Elephant flipping

Although the Elephant is the only indestructible human land vehicle in Halo 3, it is possible to flip an Elephant over, unlocking an interesting and somewhat funny Easter Egg. Also, if you put Receiver Nodes on the surface of a flipped Elephant, it is possible to launch vehicles out of the map if placed correctly under the Elephant.

Gravity Lift Method
The easiest way to flip an Elephant is to spawn a closed Drop Pod in the cockpit and throw down a Gravity Lift right near it.

Fusion Coil Method
Firstly, go into Forge mode and put all the Fusion Coils and Plasma Batteries on the back of the Elephant. Set the Plasma Batteries and Fusion Coils settings so every number is the highest possible. Then stand back and shoot one of the Fusion Coils and wait until the Elephant lands.

Run Over Method
Another way of flipping an Elephant is to drive one towards and partially over the other, then get out and drive the other one forward until it flips it over. This is the only way to flip the Elephant that you don't have to go into forge mode to do.

Forge and Drop Pod
Go into Forge and place a drop pod. Take the drop pod and put it inside the cockpit and fly up. The Elephant will either fly up in the air, or the drop pod will slip out and you will have to do this again.

Random Glitch Method
200px|right You DO NOT need Forge for this method. Sometimes in matchmaking or large custom games, the elephant will begin to sink into the ground for some reason. When objects begin to sink in the ground, they will be forced back out. The reason why they sink is most likely caused by lag. In the case of the elephant, when it sinks too much, it will be shot out of the ground and the elephant will be sent flying. Usually it isn't sent to high. But in cases of extreme lag, it can be shot all the way across the map. In most cases, the elephant will simply to a barrel roll and land upside down which will give you the hidden elephant message.