Warthog Jump

From Halopedia, the Halo wiki

Summary

The Warthog Jump was inspired by Randall Glass. It is commonly done in Silent Cartographer (Level), where you launch a Warthog into the air using grenades and/or rockets. In Halo 2, the Sputnik Skull can be used to make Warthogs fly farther than they would normally.

How To Do It

What Randall Glass Says

Randall Glass had a way to say it.

Q: How did you get all of those grenades?
A: You have to shoot some soldiers. Shoot 5 of your guys (dropping
about 8 grenades total). They usually drop grenades when they die
(0-2). Here's a hint, trigger a Checkpoint before you do anything
(like shooting your guys). Revert to Saved if they drop nothing. 
Other people have discovered an easy method using CO-OP mode. You
and your buddy carry 4 grenades at the beginning of the level. Melee
each other from behind and you'll drop them.

NOTE: only dropped grenades will chain-react. The ones you find near 
he flipped warthog won't go off. Also, multiplayer grenades won't
work either. Please try things before you ask.

Images

File:Warthog Jump.jpg