Terminal/Halo: Combat Evolved Anniversary/Two
From Halopedia, the Halo wiki
Campaign level: Halo (video-guide)
Guilty Spark is inside a Forerunner structure, gliding down a dimly lit hallway.
Fade to a different scene. Several armored Forerunners stand in various places in the chamber. Guilty Spark enters the room and flies toward the other monitors.
A yellow monitor faces a Forerunner. The Forerunner bows his/her head, as if unhappy with what is to come. Guilty Spark moves on and flies into an adjoining chamber, where he meets 049 Abject Testament.
As Guilty Spark narrates, the view shifts through several different locations: a Forerunner planet emblazoned with glyphs, large Forerunner structures in an unknown location, a forest with a large Forerunner building rising above the treeline, two Forerunners watching a ship outside a large window, an unknown starship, and two Forerunners standing in a city. One is smaller than the other, possibly being a Manipular.