The Covenant (level)

The Covenant is the tentative title of the 8th campaign mission of Halo 3. It takes place in The Ark. As the purpose of the level is to "stop Truth", it is possible that the ultimate objective of the level is to kill the Prophet of Truth in a boss-battle of sorts.

It seems likely that the battle depicted in the Diorama ad takes place in this level. If so, the level's plot may follow the Chief's apparent capture by Brutes.

Upon completing it on the Normal, Heroic, or Legendary difficulties, the player will earn the "Last Stand" achievement and 40 Gamerpoints.

Trivia

 * "Last Stand" can also be compared with the "Last Stand of the 300 (Spartans)."


 * It is also worth noting that there are about 300 Spartan III's left alive. This could mean that they are involved somehow.

http://halo.wikia.com/wiki/Image:Arbitertruth.jpg This is the cutscene after defeating Truth.