Command shuttle

"We have survivors to transport to the command shuttle."

- Cortana during the events of Installation 04.

The Command Shuttle was a type of vessel in use by the United Nations Space Command. It was likely designed for the purpose of transporting senior officers from ship to ground.

Battle of Installation 04
During the opening phases of the Battle of Installation 04, the command shuttle was the craft that brought down all the vital bridge crew from the to the surface of Installation 04.

Trivia

 * The Command Shuttle may have been an SKT-13 Shuttlecraft, a larger version of the Bumblebee Lifepod, used to transfer the survivors to the Firebase.
 * In the level "Halo" in Halo: Combat Evolved, it was said that all survivors would be transported to the command shuttle, even though Alpha Base was the command post.