Mass Effect 2: Legion: A House Divided - walkthrough Mass Effect 2 guide, walkthrough

Last update: 02 June 2021

Description: You'll be given a chance to recruit a very unique member of the team after completing The Reaper IFF main mission. Wait until you've returned to the Normandy and you'll be informed about the captured geth. Confirm that you wish to reactivate the machine. I have to warn you that if you haven't sufficiently developed a paragon bar or a renegade bar you'll be risking losing Tali's loyalty if you add the geth to your squad. The captured machine can be found in the AI core on the third level of the Normandy (door to that area can be found inside the clinic).

Approach the unactive geth (first screenshot) and confirm that you want to turn it on. Doing this will result in having a conversation with your new ally. The geth will call itself Legion and you should talk to it again to initiate its personal quest concerning the attack on a heretic base. After you've listened to Legion's request return to the main deck and use the galaxy map to plot a course for The Phoenix Massing. Use a fuel depot and then fly to The Sea of Storms system. You'll have to find the Heretics base there and start docking procedures.

You'll start this mission by a having a short conversation with Legion. Don't worry, because you won't have to decide right now how this quest should end. Instead start exploring the [Heretics station] by heading forward. Find a med kit and then choose a nearby ramp (second screenshot) to proceed to a lower level.

Approach a new chamber and notice green bands on the floor. You'll have to avoid stepping on them, because it would trigger an alarm and all the nearby geth would be awakened (first screenshot), including hunters. Remain far away from the bands if you plan on surprising the geth and don't worry about your teammates, because they'll also be careful.

If you manage to get to the other side of the room without triggering an alarm you'll have a chance to blow up a geth hub (first screenshot) and the explosion will damage or destroy most of the geth who were connected to the hub. Make sure it's safe here and then approach a destroyed hub to collect 3000 credits. You'll also have a chance to talk to Legion here.

Choose the only exit from this room. Notice that there are two rocket turrets in the next corridor and you'll be allowed to use one of Legion's abilities to hack them from a distance. You should do this right now, because new geth will show up here very soon. Bear in mind that the turrets will eventually get destroyed or self destruct so you shouldn't be taking cover near them. I would also recommend remember about the possibility of using the turrets in the upcoming battles, because having them on your side will make winning easier.

Proceed to the next corridor and be careful, because there are two geth hubs in the area. Sadly you won't be allowed to destroy one hub without raising an alarm in the other one, so you'll have to be prepared to fight at least one complete group of the geth. I would recommend destroying the hub seen in the distance (second screenshot). You should then turn right and defeat the geth coming out of the second hub. Don't forget to check both destroyed hubs after the battle - each object contains 3000 credits.

The next corridor will be guarded by a small group of geth. You should be fine as long as you remember about using cover while attacking the machines. Don't forget to collect a med kit along the way and then proceed to an upper level. You'll also encounter several geth here and you should still be using cover while shooting at them.

Open the door to find yourself standing in a much bigger room. I would strongly recommend that you activate (from a distance) two rocket turrets located in the center of the room and then you take cover. Start attacking the geth, preventing them from destroying the turrets prematurely. Don't forget to target enemy hunters first, because otherwise they would probably organize surprise attacks.

After you've eliminated all the geth you may choose a corridor leading to the next area of the station (first screenshot). Check the other end of this corridor to find a med kit and power cells. Proceed through a door found to your right and head down to a lower level. Don't forget to open a container found along the way (second screenshot) to collect 2000 units of palladium.

Save your current game and then proceed towards a new door. You'll have to take part in a small battle here. Start off by activating a rocket turret, find a cover and assist the turret in getting rid of geth units. You may now check your surroundings to find a computer terminal (second screenshot). Interacting with the terminal and solving a mini-game will allow you to add a new plan for a research project to your database. Proceed towards the only available exit.

Head down to a lower level. You'll have to be extremely careful here, because there are new bands on the floor. Don't step on them if you're planning on surprising enemy troops. Head down to a lower level where you'll have to choose again between two geth hubs. One of the hubs can be easily destroyed, but you'll have to fight the geth from the other hub. Make sure to check both hubs after the battle to collect a total of 6000 credits.

You may proceed to the next section. You'll soon end up in a long corridor and you should inspect a large glass wall seen to your right. Doing this will trigger a conversation with Legion - just as before, you won't have to choose your answers carefully, because you'll make the final decision later in the mission. Proceed to a new large area of the station and take your time to look around, because this is where the main battle will take place. Ignore a med kit for now, because you may need it later and don't activate any of the turrets prematurely. SAVE your game and then interact with the main terminal (second screenshot).

Get ready for a difficult defensive mission during which you'll be taking out large groups of geth. Ignore the warning about you having to protect the core, because your only concern will be to keep your team alive. Don't forget to start taking control over rocket turrets located beneath your position. Doing this will make the geth more interested in the turrets, allowing you to safely attack them from the upper balcony.

You should know that even more geth will show up here later in the battle and this means having to retreat behind objects found on the balcony (you can't remain close to the balustrade forever). Don't worry if the turrets are being disabled quickly by enemy forces, because their destruction won't affect the outcome of this battle.

Keep attacking the geth units until all machines have been eliminated. You'll now have to make an important choice concerning this base and heretics. If you're playing as an idealist you should allow Legion to reprogram the heretics and if you're playing as a renegade you should propose an idea to blow up the base.

In both cases you'll be informed that you'll have only a short window of time (three minutes) to escape the base. An idealist will want to avoid an EMP pulse and a renegade will want to avoid the explosion. Proceed towards a newly unlocked passageway (first screenshot) and it won't take long until you encounter the geth. Don't forget that you'll have to destroy them quickly so you won't lose too much time.

The final part of this mission is going to be a very difficult one, because you'll have to destroy a mini-boss - Geth prime. I would strongly recommend using a heavy weapon here to destroy its shields and armor quickly. After you've defeated the boss you must make a few steps forward and interact with a small hatch (second screenshot).

Get ready to witness a new confrontation after you've successfully returned to the Normandy. This time Tali will have a problem with Legion and the easiest way to resolve this situation would be to use a special dialogue option (paragon or renegade). Otherwise you'll have to choose between being loyal towards Tali or Legion (standard dialogue options).