Mass Effect 2 Suicide Mission Guide: How to Clear the Tartarus Debris Field
This part of the Mass Effect 2 guide focuses on the opening stretch of the Suicide Mission: the Tartarus Debris Field. It walks you through each combat set-piece in order, and it also lays out what can happen during this segment depending on how you prepared beforehand.
Heads-up: this walkthrough includes spoilers for the Suicide Mission. That said, the guide doesn’t spell out consequences until the moment they actually occur—so if you keep scrolling carefully, you can avoid learning outcomes too early.
Looking for something specific? Jump to:
- Before We Begin
- Use Omega-4 Relay
- Oculus Attack
- Debris Field Pursuit
- Normandy vs Collector Ship
Before We Begin
This walkthrough section breaks the Suicide Mission down step by step. There are multiple possible versions of how the mission can play out, but the process is built from the same core actions. Most results follow a simple either/or pattern, which means the advice stays broadly applicable across variations. The guide also flags moments where specific characters can be at risk, but it holds off on the exact logic behind those outcomes until the results show up in-game.
If you’ve been following the full walkthrough roadmap in order, then by the time you’re ready to start the Suicide Mission you should have completed every Dossier mission, every Loyalty mission, and also all N7 side quests plus the Lair of the Shadow Broker DLC. Provided you enabled the Tap to Reveal option as well, you’ll be set up with a full level of readiness—leaving just the task of making solid choices as the mission unfolds.
- For a full explanation of how the Suicide Mission functions—including the underlying calculations and how they influence specific outcomes—visit the “How the Suicide Mission Works” page.
Mission Stats
Video Guide
Mission Rewards
- Mission Experience: 1,500 XP
Use Omega-4 Relay
- Location: Omega Nebula – Sarhabarik – Omega-4 Relay
Your first task is to activate the Omega-4 Relay. However, there may be one last preparation step before you do it: upgrading the Normandy. After completing the “Horizon” mission, you can talk with your squadmates to unlock seven Normandy upgrades. While all of them are useful in general, only three are directly evaluated during the Suicide Mission sequence covered in this page.
Important Normandy Upgrades
Once you’ve secured the three key Normandy upgrades and you have a full group of loyal squadmates, you’re ready to move on. Travel to the Omega-4 Relay in the Sahrabarik system within the Omega cluster. Anyone who has tried to use that relay before didn’t return alive—but now it’s your turn to make the jump.
When you commit to the jump, EDI performs one last confirmation check, reminding you that the trip is one-way.
After you initiate the relay, you’ll get several short scenes during the time it takes the Normandy to reach the Omega-4 Relay. First, Miranda appears to show her approval of Shepard’s leadership and gives a rare salute. You can respond however you want.
Next comes a romance-related scene in the Captain’s Cabin, but only if you currently have a “Serious Romance” route active. For many characters, this is basically the payoff of what you’ve already seen—but a few situations are handled differently:
- If you chose to romance Jack, you must accept her during this scene. If you decline, the romance is permanently cut off. Jack is especially exposed here and is opening up to Shepard in a major way, so breaking it off lands badly.
- If you romanced Liara, Ashley, or Kaidan in the first Mass Effect, and you didn’t start a “Serious Romance” with anyone in Mass Effect 2, Shepard will instead look at their character photo sitting on the desk before leaving.
Finally, the Illusive Man offers his backing, whatever that ends up meaning in the context of your choices. You can reply with either:
- "The team is strong" for +2 Paragon Points.
- "I don’t need to know" for +2 Renegade Points.
In the end, he doesn’t have much extra information to provide. Still, he strongly suggests that humanity’s achievement here is impressive.
Then you jump. The Normandy rockets through the Omega-4 Relay as the crimson machinery carries you forward, bringing you to the Milky Way’s center. The arrival itself is almost a disaster: the ship appears in the Tartarus Debris Field, described as a graveyard of vessels that have tried to reach this region over the ages. Some of the wrecks are extremely old, implying the cycle has repeated for a long time. EDI also detects the Collector Base at the edge of the dust field surrounding the black hole.
Oculus Attack
As Joker clears the Normandy out of the debris field, Collector robots called Oculi attach to the ship and start chasing it. Joker can pick off a few, but there are simply too many of them—especially in the cramped, cluttered space where you can’t easily maneuver.
Eventually, one of the Oculi scores a hit on the hull, putting the first set of your Normandy upgrades to the test:
- If you didn’t upgrade the armor, the beam slices into the CIC and kills Jack immediately.
- If you bought the Heavy Ship Armor upgrade, the hull survives the laser impact and Jack lives.
Once that moment plays out, the mission continues into the next phase.
Debris Field Pursuit
Joker keeps dodging the Oculi, but at some point one slips into the Cargo Bay. With the Normandy suddenly in serious trouble, you’ll need to choose a squad to handle the problem. This pick matters more than it might initially seem, especially if you didn’t invest in another specific Normandy upgrade. If you didn’t, the guide advises you to skip “tactics” and instead choose the two squadmates you cannot stand to lose.
The Oculus is extremely dangerous, and the combat that follows is inconsistent—built around unpredictable moments. The Oculus has a shield you must wear down using heavy weapons before you can meaningfully damage it. The best approach is to wait for safe openings: fire when you can do so without getting punished, then quickly take cover before it deletes your health in a matter of seconds.
The Cargo Bay also contains supplies—and these are the only collectible items found anywhere in the Suicide Mission. They are:
- Med Kit – 100 credits. Located on a table to the right of the entry door.
- Power Cells – 100 credits. Found on the left-hand side of the Cargo Bay, between two Fragile Crates and near a hole in the floor.
- Medical Station – 100 credits. In the back-left corner of the Cargo Bay.
- Medical Station – 100 credits. In the back-right corner of the Cargo Bay.
- Power Cells – 100 credits. In the back-right corner of the Cargo Bay, among some Fragile Crates.
When you reduce the Oculus to 25% health, it retreats back into the debris field.
Next, Joker attempts to shake off the remaining Oculi by forcing the Normandy through a set of high-intensity maneuvers. This pushes the drive core to its maximum, and this is where your shields are tested:
- If you didn’t upgrade the shields, the Drive Core overloads and vaporizes whoever is stationed at it. There’s a clear “priority” system here: if the intended squadmate isn’t present for any reason (including being with Shepard in the Cargo Bay), the next person down the list will take the role.
- Priority order: Kasumi → Legion → Tali → Thane → Garrus → Zaeed → Grunt → Samara / Tap to Reveal
- If you purchased Multicore Shielding, the Drive Core can endure the stress and won’t overload—so nobody dies.
- Priority order: Kasumi → Legion → Tali → Thane → Garrus → Zaeed → Grunt → Samara / Tap to Reveal
After that event resolves, the same Oculus returns to the Cargo Bay with its armor restored to full. You’ll have to remove it for good using the same kind of approach you used the first time.
Normandy vs Collector Ship
At this point, the Normandy has thrown off the Oculi and escaped the Debris Field. Everything looks like it might go smoothly—until the Collectors send out a familiar threat: a Collector Ship. This is the same kind of vessel that destroyed the original SSV Normandy SR-1 and kidnapped the crew of the SR-2, implying the Collectors may only have a limited supply of these ships.
This section also performs the final upgrade check, this time for the Normandy’s main weapon:
- If you didn’t upgrade the main gun, Joker is forced to close distance to score hits on the Collector Ship. That means when the Collector Ship explodes, the Normandy takes damage and a squad member onboard dies—mirroring the drive core risk earlier.
- Priority order: Thane → Garrus → Zaeed → Grunt → Jack → Samara / Tap to Reveal
- If you purchased the Thanix Cannon upgrade, Joker can strike from farther away. In that case, the Normandy avoids damage and nobody is killed.
- Priority order: Thane → Garrus → Zaeed → Grunt → Jack → Samara / Tap to Reveal
No matter what, the Collector Base explosion knocks the Normandy out and forces Joker into a violent landing on top of the Collector Base. Fortunately, the Collectors are arrogant and appear to assume nobody would ever get close enough to land—whether accidentally or intentionally. Because of that, their detection seems weak. For now, they may believe the Normandy has been destroyed and that everyone aboard is dead.
You’ll now need a plan for how to infiltrate the base and destroy it. That is covered on the next page: The Collector Base Infiltration.
Want more Mass Effect 2 help? Check the following pages:
- Legendary Edition Changes
- How-To Guides
- Key Choices and Consequences
- Romance Options
- Walkthrough
- Side Quests
Up Next: Base Infiltration
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