Chapter 12: The Dying of the Light
Titus intends to use the Titan Invictus to sever the Orbital Spire. Move forward into the pipe. When you travel up the stairs, turn left and shoot the explosive wall to your right to reveal the log ‘Worker Nathaniel 4/5’, then take the path to the right. Another set of explosives to your right will reveal ammo and grenades. Walk to the support pod.
Gird yourself with the Iron Halo, which will enhance your defenses. Behind the pod and to the left is the servo skull containing the log ‘Inquisitor Drogan 3/10’. Follow the sounds of battle to encounter more of your enemies fighting each other, including Chaos Space Marines. The traitor guardsman, however, are puny humans and walking health bars like the grots. Be aware that groups of them will cut through your shields if you let them, but then they also ragdoll about when you barge through them.
The Chaos Space Marine’s armor will regenerate like yours, so if you give them long enough, their defenses will be right back to full. After this, exit via the ramp, up the stairs. A small room will contain the log for ‘2nd Lt. Mira 4/5’ follow the objective markers. Collect weapons and ammo and move forward. It’s like you don’t even need to be told what to do. You’ll be assailed by Chaos Marines and renegades. Use long ranged weapons to take them out. Some Bloodletters will warp in a ways after you progress. Head downstairs and loyalist Guards will be fighting Bloodletters. Help them out.
The door in front of you will open, and it's time to arm yourself with the Thunder Hammer.
Kill everyone not a human (racist) and follow the markers. Taxing stuff. Continue your march toward the objective. Some Orks will intervene, so intervene on their intervention. The servo skull for ‘Guardsman Alexander 4/5’ is to the left, when the game saves.
Continue forward, dispatching the ‘ard boyz you meet. Keep going and you’ll be treated to rokkit boyz as well as ‘ard boyz. Follow the marker to the lift. Go up to the walkway. When you hear the guardsman’s message to you, turn right to see the audio log for ‘Drogan’s Journal 4/10’, then continue down the path. March into the wreckage, collecting any ammo needed. Take the Plasma Gun from the support pod and collect the log for ‘Transmechanic Petronius 5/5’ to the left of the pod.
Proceed towards your new objective of defending the outpost, as this involves killing all Orks there. When they’re defeated, the game will save. Now you’ll need to bolster the defenses of another outpost. Once you arrive you’ll have to power up the sentry guns. Descend into the trenches. To the right is the log for ‘Guardsman Alexander 5/5’.
Continue into the trenches, killing all Orks along the way. Kill your way to the sentry guns to finally activate them. Go through a small doorway and descend into the bunker. In the room filled with many weapons crates, look behind the containers to find the log for ‘2nd Lt. Mira 5/5’. Follow the objective marker to reach the manufactorum. Open the door and who is that, pleased to see you? Why if it isn’t Warboss Grimskull. Turns out Grimskull is pushy and kind of a jerk. Reasonable person that he is, Titus cannot allow him to live.