Mass Effect Codexery

Collector Base Assault

Shepard leads a suicide mission into the unknown to stop an ancient harvest before it begins.

The Collector Base Assault serves as the explosive finale of *Mass Effect 2*, where Commander Shepard and their elite squad infiltrate a massive, hidden facility located in the Omega-4 Relay. This operation marks the decisive confrontation against the Collectors—human-alien hybrids serving the ancient Reapers—who have been abducting colonists to construct a new Reaper. Known infamously as the 'Suicide Mission,' this assault tests the limits of human resilience and galactic cooperation, culminating in a desperate fight for survival that determines whether humanity faces extinction or holds the line against an ancient threat.

Location
Omega-4 Relay (Unknown Sector)
Primary Antagonist
The Illusive Man's Collectors
Key Commander
Commander Shepard
Outcome
Base Destruction / Collector Leader Defeated
Major Casualty
Squadmate Death (Player Choice)

Lore & Background

The source does not provide specific lore details about the Collector Base, its construction, or the nature of the Collectors beyond their role as antagonists. It states that the Collectors invade the Normandy to capture its crew in the absence of Shepard and the squad, and that Jacob Taylor is recruited by Miranda Lawson in *Mass Effect Galaxy* to investigate a conspiracy involving batarian terrorists. The source does not describe the base's architecture, the Reaper creation project, or the Collectors' origins.

In Their Own Story

The source does not provide a narrative account of the Collector Base Assault. It mentions that in *Mass Effect 2*, Joker briefly becomes a playable character when the Collectors invade the Normandy to capture its crew in the absence of Shepard and the squad. It also notes that the appearance and story arcs of certain characters in *Mass Effect 2* and *Mass Effect 3* are conditional upon decisions from prior *Mass Effect* titles being carried over via an imported save file, and that unless the player imports a *Mass Effect 2* saved game where Jacob does not survive the suicide mission, he returns in *Mass Effect 3*.

Reader's Guide

The source does not provide a gameplay guide for the Collector Base Assault. It states that the appearance and story arcs of certain characters in *Mass Effect 2* and *Mass Effect 3* are conditional upon decisions from prior *Mass Effect* titles being carried over via an imported save file, and that Jacob Taylor is a potential romantic option for a female Shepard. It does not describe mission phases, squad composition strategies, or escape sequences.

Did You Know?

More in Campaigns & Missions

Related in Mass Effect

Links follow this subject's own source article.

Elsewhere in the Mass Effect universe

Open in the interactive codex →