|This article is a stub and does not have enough relevant information. You can help by expanding it.|
- “What was once a strong defensive position known as the Fort, has turned into a very tight spot after the Flood was able to utilize the Forerunner teleportation grid and gain the ability to land right on top of the Forerunner platform.”— Mission summary
Holding the Fort is the second of the five Co-op Missions in Halo: Spartan Assault. It is only available in the Xbox 360 and Xbox One versions of the game and must be played by two players over Xbox Live.
The players must survive a Flood assault lasting just over two minutes.