Double Warthog driving glitch

Through a glitch in Halo PC one player can control or "slave" one Warthog without a driver to follow an occupied Warthog.

Walkthrough
This is a very intresting glitch. First you park two Warthogs, front end parallel to the back end, side by side. Then you sit into both seats LOTS of times which makes the computer think that you are in both Warthogs. Now here's the interesting part: move one Warthog and then the empty warthog will go to in the same direction.