The Bureau: XCOM Declassified Walkthrough

Table of Contents

Chapter 6: The Last War

It may look like this is the final strike against the Outsiders, but things don’t play out like that. After killing the Ethereal, a new threat will emerge in the medical quarters. Once hooked up to the Mosaic network, the Infiltrator goes ballistic and escapes.

Carter’s team is waiting nearby. Chase after the Infiltrator, and take cover whenever you spot him! Shoot him up to get the enemy to retreat further through XCOM HQ.

In the long concrete walkway, if the Infiltrator won’t move just run straight for him.

Things go from bad to worse in the detention wing. Rows of pods open, and the aliens inside escape to arm themselves. Prepare for a long fight.

Outsiders with M14 Rifles will rush to cover on the left and right, while two Elite Snipers overwatch around the far back of the room. Use Lift on one, and Mind Control on the other. Or draw one out with Taunt and take him out with Critical Strike.

Clear out more of the Outsiders, and two more tough guys will appear. Another Sniper Elite and one Shield Command will drop into the area.

There’s no reason to leave the upper walkways. There’s more alien ammo in on the boxes to the left or right, and one on the desks at the bottom of the stairs near the start.

Take the stairs up and to the locked door to hear the Infiltrator monologue. Continue through the Energetic Materials Lab and down the steps to find another Resupply Station.

Past that, you’ll find another prison area. Outsider Elites will move in on the left, while regular Outsiders attack from the right. Take cover on the terminals to the right to easily flank most of the incoming Outsiders.

Two Outsider Elites and a Sectopod will appear from the opening doors down the hallway. Stay in the back of the room and shoot down the Elites as they rush from cover to cover, and deal with the Sectopod once its alone.

Wait for the Sectopod to get closer, or hit it with Weaken, Taunt, Lift, or anything else. Grab a Blaster Launcher from the Resupply Crate before going in to make this Sectopod a little easier.

Once the Sectopod goes down, the Infiltrator will finally show himself. Compared to the first time you fought him, he’ll be no problem. Hit him with every ability you’ve got, target him, and he’ll die in no time.

Approach the corpse to collect the bomb, and Carter will struggle to continue with his own mission. Silacoids will appear in the elevator, but those are the last enemies. Run through the lab until Carter splits off from his squad.

Carter tears himself free of the Ethereal. Fly into Carter to reconnect, and enter through the flashing doors. Carter dares the Ethereal to break off – do as he says. You can try to wait out the timer, but Carter won’t blink.

Eject from Carter, and the Ethereal will get to choose its next host. You can choose Agent Weaver, Director Faulke, or Dr. Weir. The choice is all up to you, but know that whatever you choose will change the game’s ending.

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3 Comments on The Bureau: XCOM Declassified Walkthrough


On August 26, 2013 at 11:23 am

Where’s the guide for Chapter 2 – The Doctor? All I see is the title.

Kevin Thielenhaus

On August 26, 2013 at 12:58 pm


That section was down for some revisions, but it’s back up now. Sorry about the delay!


On August 28, 2013 at 10:19 am

Dang. I thought I could save both agents. I swear I’m bad at making decision.