The Squad advances through the swamp towards the same structure you are in now.
When it opens, a dead Marine falls into his arms. After a moment, he turns back to the door, places his gun on his shoulder and opens the door. He turns around, gun ready to shoot, but sees nothing. Just as he was going to type a command into the spoofer, there is a noise behind him. John-117 approaches the door cautiously and listens for any movement inside. After realizing the fate of the Marines, John fights his way out to the swamp and encounters a questionable ally. Soon, John-117 stumbles upon a structure and ventures within it, only to find out that the Marines accompanying the Captain have been slaughtered by an unknown force. In this chapter, John-117 is dropped from Echo 419 to search for Captain Jacob Keyes who has been out of contact for over 12 hours. The third chapter is outside the containment facility. The first chapter of the level is set in a swamp and the second chapter, "The Flood" is set in the Alpha Halo containment facility. This level takes place on Installation 04, in a Flood Containment Facility. See 343 Guilty Spark (level)/Walkthrough.ģ43 Guilty Spark is the sixth campaign level of Halo: Combat Evolved. Halo Alpha has a walkthrough guide to this level, 343 Guilty Spark (level).