The Flood was everywhere. Consequently, it was no easy task to reach installation 04. But, after a lengthy and draining crossfire from both sides -Humans and Flood- you managed to clear out the area. As soon as you did so, you were teleported to installation 04. An artificial intelligence entity was seemingly staring at you. However, it almost immediately started introducing itself

"Greetings. I am the Monitor of Installation 04. I am 343 Guilty Spark. Someone has released The Flood. My function is to prevent it from leaving this Installation. But I require your assistance. Come. This way." It started moving in a certain direction, clearly expecting you to follow it.