VCTF-Containment

Briefing
"The Liandri captured a necris 'Dark Walker' vehicle and they've hidden it in a well guarded research facility. Izanagi techs want that walker. Bad. If we steal it we could learn enough about necris technology to train our combat forces. That means we could hijack necris vehicles directly off the battlefield and use the bastards' own technology against them."

The second time: (only available in the Xbox360 version of the game)

"The Krall found out about the Liandri facility holding a necris dark walker, and they overran the defenses. The Krall could use that walker to destroy the facility, laying the groundwork for a full-scale invasion. If the necris can establish a beach-head on taryd's surface, we'll have much more to worry about than Krall mercenaries."

Mission Objectives

 * Disable the enemy Respawner by removing its FLaGs.
 * The Darkwalker in the central chamber cannot be moved, but its powerful weapons are available to either team.

Added in the Xbox 360 version, chapter 3, replaces the second:
 * The Darkwalker has been released and can now roam the battlefield.