Some of the most enjoyable parts of Mass Effect 3 are when you meet up with your squadmates from the previous games. A prime example of this occurs in the Attican Traverse: Krogan Team mission (aka Attican Traverse: The Rachni).

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In this one, you're instructed to look for a missing Krogan team. In the process, you meet up with Grunt - if he's still alive. Yet, that's not the only interesting aspect of the quest. After all, you're also investigating the potential re-emergence of the Rachni. The mission is filled with intrigue, enjoyable fights, and a big decision. Here's everything you need to know about all of it.

Unlocking The Mission

This mission becomes available right after Priority: Sur'Kesh. The Krogan leader, whether it's Wrex or Wreav, will ask to discuss something in private.

In the proceeding conversation, they reveal everything about their missing team and the potential return of the Rachni.

Following the discussion, you must head to the Ninmah Cluster and enter the Mulla Xul system before landing on Utukku.

On the Galaxy Map, the mission is referred to as Investigate Missing Scouts.

Meeting The Krogan Team

The first thing you must do before meeting the Krogan crew is pick your squad.

​​​​​​​You'll mostly be up against enemies with barriers and those with no protection. So, Liara is a good pick because she has powers for both of those types of adversaries. There are also some heavily-armored forces, though, which is good for anyone with armor-piercing ammo or incinerate.

Once you've chosen your squad, you land on the planet and immediately run into the Krogan team, which is known as Aralakh Company. If you recruited Grunt and kept him alive in Mass Effect 2, he leads the group. So, you can have a little conversation with him.

When you gain control of your character again, you may want to check out the building to your left, as it contains some loot. Then follow the path down.

At the bottom, you will find an area where the Aralakh Company is hanging out. Check out the building on your left before going up to them.

Following that, feel free to speak with the company leader. Then enter the building next to him, which triggers a cutscene where you fall down the cliff. While this separates you from the Korgan, it does put you at an entrance to a tunnel.

Getting Rid Of The First Set Of Webbing And Spores

After the drop, proceed forward to find the body of a missing scout. It's a sad sight, but don't let that stop you from picking up his M-451 Firestorm weapon. After all, it's a useful gun for getting rid of obstacles.

The Firestorm is a temporary weapon, so it doesn't take up a weapon slot.

Speaking of obstacles, there is a wall of webbing blocking your progress forward. Use the Firestorm to burn it down. Then do the same to the rest of them that you find as you move deeper into the cave.

Yet, it won't take long until you reach a different type of obstacle. This one is a set of spore pods. Take them out, too, but don't stand too close, as they can damage you when they explode.

Without the pods, you're free to drop down and move up to the next set of obstacles, including three walls of webbing.

Behind the central bit of webbing, you will find another Firestorm. Pick that up and then continue on the path to the right.

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First Ravager Fight

Once you drop down into the next area, you will face off against a Ravager. If you've not faced one before, there are some tricks to fighting these creatures:

  • Before it attacks, you will notice its blue lasers. Therefore, when you see them, you know it's time to get in cover.
  • It fires three rounds in succession, then stops to ready itself for the next salvo. The break in-between gives you a chance to strike.
  • The sacks on its body contain little Swarmers that will comes out if their home is broken. Yet, you still want to blow up the middle sack, as it's a weak point.
  • Since they don't bother attacking bots, Combat Drones and Sentry Turrets are useful against the creatures, as they can freely attack them.
  • As they're all armored, powers like Incinerate are effective against them.

However, Ravagers aren't the only thing you've got to worry about in this fight. There are also Husks coming your way. You don't want them protected by barriers, so destroy the Barrier Engine immediatly.

Afterward, move a bit to the left to hide behind the large spike. You don't need to get in cover. Just stand there while attacking the Husks as they come to you. The reason for this is the Ravager struggles to land a hit on you when you're in this position. Therefore, it gives you a chance to wipe out the more immediate threat of the Husks.

Once they're dead, you can focus on the Ravager. There are also some small Swarmers in this fight. They're the weakest threat, but a threat nonetheless. Avoid letting too many get close to you at once.

After the fight is over, go across the room to where the pods are. Get through all of them and a piece of webbing.

Eventually, you reach a stronger blockage. To get past this, destroy the webbing to your right. On the other side, you locate a Reaper node and another Firestorm. Destroy the node to remove the blockage and reveal a piece of webbing. Get rid of this to trigger a cutscene.

Continuing Deeper Into The Cave

At this point in the mission, you're looking for the Central Chamber. There are several more rooms and halls to go through first, though. The initial one contains two paths. It doesn't matter which you follow as they both have obstacles to burn and take you to the same place.

The said place includes more pods and webbing to destroy. You also get a visit from a Husk when you turn the corner, so watch out for that. Check for items behind the walls of webbing, as you can get some useful things.

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Second Ravager Fight

It doesn't take long until you reach a large hall, which looks so much like a battlefield that even the characters expect a fight. And they're right, as when you jump down, you get ambushed by a Ravager, Husks, and some Cannibals.

Get in the cover directly in front of you and shoot the Barrier Engine right where the Husks are spawning. This part is a little tricky, as a couple of the undead creatures rush you, and they may have barriers if you don't take the engine out in time.

The natural instinct is to get out of cover and back up. But if you do that, the Ravager to the right could take you down. So, shoot the Husks as much as you can and use Liara's Singularity if she's there, as that will, at least, slow them down.

They're not the last of the Husks. But once the first few are dead, you have a little time to shoot the Cannibals and the Ravager. By default, Cannibals don't have any barriers, shields, or armor. Thus, they're vulnerable to Biotic attacks.

When the next group of Husks comes, things admittedly get a little chaotic, especially as Cannibals are probably throwing grenades at this point. You'll need to move around different covers within the first water area to stay safe while picking enemies off when you get the chance.

Once they're all dead, you get a bit of peace. However, it doesn't last long, as when you go deeper into the cave, enemies spawn from the left. Thankfully, there are no Husks and plenty of cover for this battle. So, it's a pretty standard fight.

Make sure to take out the Barrier Engine as quickly as possible. And when a grenade gets thrown, you're usually free to leave cover and back up a bit as the enemies struggle to hit you from there due to everything blocking the way.

After the fighting is over, you must head towards the exit. ​​​​​​​

Looking For The Central Chamber

As you continue forward, you find different types of pods. You may find some Swarmers in these. But other than that, they're basically the same as the last ones.

Therefore, you should destroy them, too. If you don't have a Firestorm anymore, you may have to use traditional guns or powers - you can pick up another Firestorm after the first few sets of pods.

Next, you enter a room filled with these new pods. You must follow the path that is heading upwards. Near the top, you find Aralakh Company below you in battle. You can't help them, so keep heading forward.

Not long later, you get to a room with a Reaper node in it. Like the last one, destroy it to open a pathway that leads to the Central Chamber.

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Destroy The Nodes In The Central Chamber

To reach the Central Chamber, you have to squeeze through a narrow passage. After getting to the other side, some Reaper Tech activates and traps you. You must destroy all the nodes to remove the blockages.

Central Chamber Node One

The first node is within your little prison. To be more specific, it's in the top corner of it.

Breaking it opens up one wall, and behind it are multiple Husks. Not far behind them are Cannibals. Stick in the initial cover and kill them all. Towards the end of the battle, you may notice a Ravager at the back. So, wipe it out, too.

Central Chamber Node Two

Then head over to where the Ravager spawned to find and demolish node two. There's even a Firestorm next to it. So, use that if you want to save some of your standard ammo while breaking the thing.

Following that, many enemies spawn. There's plenty of cover around the node, so it's best to stay there for the battle.

Central Chamber Node Three

The third node is on the opposite side of the chamber. Once you get over there, you find enemies blocking your path. There are Husks among them, but they don't seem to appear straight away. Thus, you can engage in a straight shootout, at first, where you mostly stay in cover.

When you've taken everyone out, head over and break the node. Once again, there is a Firestorm to help.

After you deal with the node, you get more visitors. The Husks sprinting at you from the left are the first threats. Biotic powers like Singularity can stop them in their tracks.

However, that isn't the hardest part of this section. After all, there are two Ravagers you have to face.

You might have the most success by going to the left, where the Husks spawned. This path has a large wall, and you can peek out either side of it to get shots at the enemies. You definitely want to avoid staying out in the open for too long, as you can die quickly.

Just keep getting little shots in and defeat the extra set of Husks that arrive. Eventually, the Ravagers will be dead, and a cutscene will trigger.

Dealing With The Queen Or Breeder

Once all the nodes are gone, you either re-unite with the Rachni Queen you spared in the original game or meet the Rachni breeder that takes her place.

Either way. During your conversation with them, you have to decide whether to save the Rachni leader or let them die. Here are the consequences of your choices:

  • Let the Queen Or Breeder Die - If you choose to leave the creature, you will gain Aralakh Company as a war asset, and Grunt will survive the mission.
  • Rescue The Original Queen - This decision means you lose some of the Aralakh Company, reducing their war assets. But you do gain some Rachni workers, which are more effective. If you beat Grunt's loyalty mission in Mass Effect 2, he will survive here.
  • Rescue The Breeder - Rescuing the Breeder is a bad call. The creature betrays you in a few missions, taking away the Rachni workers it initially provides and hurting some of the Alliance Engineering Corps in the process. On a brighter note, Grunt will survive if you beat his loyalty mission in Mass Effect 2.

If you don't have Grunt, then his replacement dies no matter what.

When you've made the decision, you see everything play out as the mission comes to an end.

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