Mission 15: Superstructure Stand-off

Superstructure Stand-off is the fifteenth mission of Halo: Spartan Assault. This is the last mission with the Spartan Davis as playable character. Complete this mission unlocks the Switched Off achievement.

Introduction
Spartan Davis and the remaining Marines assisted the combat technicians securing the Forerunner structure while the Covenant reinforcements did everything in their power to stop the technicians.

With supporting sniper fire from higher grounds, Davis and his men were able to buy the technicians just enough time to do their work. However, even with their job complete, it was too late for Draetheus V. In the sky they could see the planet had already begun to violently break apart.