Fall of Atreus is an Operation in Warhammer 40K: Space Marine 2. See walkthrough on how to complete Fall of Atreus, as well as information on acquiring dataslates, armory data, and gene-seed!

Fall of Atreus Operation Walkthrough

Operation Checkpoints

• Necropolis
• Cemetery
• Cathedral
• Catacombs
• Adeptus Mechanicus Base

Proceed to the Mechanicus Compound 1

At the starting point, just proceed forward while following the objective marker with your teammates. You will encounter Minoris and Majoris enemies as you proceed downwards. Team up with your party to defeat these enemies.

You will eventually stop at an obstruction. Lift it to proceed further until you reach a graveyard where your next objective is located.

Follow the Dreadnought

At the graveyard, you will meet the Dreadnought and your objective here is to follow it. Fight enemies(mostly Minoris and Majoris) that are stopping its march. Do not worry as the Dreadnought is equipped with a flamethrower and a minigun to help fend itself against Heretics.

Eventually the Dreadnought will go to a gate and will open it so you can proceed.

Clear the Passage

Enter the building at the other side of the gate and interact with the objective. Your mission here is to hold until the passage is clear by protecting the excavation crane.

Build the meter up to 100% to complete this objective.

Activate the Enginseers' Consoles

If you fail to protect the excavation crane, you will need to activate the two Enginseer's Consoles in time. Once you activate one of the consoles, you would need to go to the other console to activate it before the timer runs out.

Proceed to the Mechanicus Compound 2

Keep descending downwards by following the objective marker while defeating more enemies on the way.

Repel the Assault

Your next objective will be repelling the enemies by defeating them. After defeating them, your next goal is to talk to the Tech-Priests.

Speak with the Tech-Priests

Just keep following the objectives and you'll eventually encounter the Tech-Priests. After that, open the gate to get to your next objective.

Escort the Fusion Battery to the Power Plant

Interact with the console to start moving the fusion battery on the tramway. Have one of your teammates get to the railway controls (located at the center of the platform) to adjust the path of the battery.

Meanwhile, have two members of your team protect the battery while it is moving. It is recommended to kill the enemies first to have an easier time adjusting the path and guiding the battery before new enemies spawn.

Escort the Fusion Battery to the Battle Barge

Your goal here is similar to the previous one. You will need to adjust the tracks and guide the battery to the battle barge this time which is the large structure in the middle of the map. Use the railway controls to change the path of the battery and guide it towards its goal.

Defeat the enemies first before moving the battery.

Hold Until the Engines Charge

Upon reaching its destination, it will charge the engines and you have to defend it from incoming enemies. There will be a percentage bar at the top right where it need to reach 100% to complete the objective.

Finally launch the Battle Barge to complete the mission.

Fall of Atreus Collectibles

Fall of Atreus Armory Data Spawn Points

Armory Data	Location
Necropolis	At the start of the operation, go to the left right before entering the archway to find it.
Cathedral Not visible in image.	Found in the area while holding until the passage is clear.
Adeptus Mechanicus Base	After talking to the Tech-Priests and heading outside, head down the ramp and go to the opposite side to the other ramp that should theoretically lead back into the base, it’ll be right by the door next to the Tech-Priest

List of All Armory Data Locations

Fall of Atreus Gene-Seed Spawn Points

Gene-Seed	Location
Necropolis Gene-Seed may appear in place of Guardian Relic.	On the second level of the starting area, right before going down the ramp to the lowest floor, go to the lit room to the right, and it’ll be on the right corner by the desks
Necropolis	At the last lower floor of the starting area, go forward before crossing the bridge, head to the right towards a dark room, and it’ll be on the left inside an open box.
Cemetery	In the cemetery with the Dreadnought. Before going up the large flight of stairs, head to the right, then go forward and look for a nearby tomb with a box in front. The Gene-Seed will be located inside the box.
Cathedral	After using the crane to clear the rock and jumping down, go behind the objective instead of forward and it’ll be at the right side when facing the back.

List of All Gene-Seed Locations

Fall of Atreus Dataslate Locations

Dataslate	Location
Unauthorized Override Attempt	After using the crane to clear the rock and jumping down, go behind the objective instead of forward and it’ll be at the end, behind the statue in the center.
Status: Battle Barge, Fall of Atreus	Climb up the ramps in the Manufactorum near the end of this section, there will be an alcove to the left and it will be there.

List of All Dataslates

Fall of Atreus Achievements

Resurrection

	Resurrection
	Reanimate the Sword of Atreus ► Clear Fall of Atreus

Trophy Guide and All Achievements

Warhammer 40K: Space Marine 2 Related Guides

Co-op Operations Guide

List of All Operations

Space Marine 2 Operations
Inferno	Decapitation	Vox Liberatis
Reliquary	Fall of Atreus	Ballistic Engine