Mass Effect 2: Introduction - Prologue walkthrough Mass Effect 2 guide, walkthrough

Last update: 02 June 2021

Starting here, you can choose in which order you want to complete the first set of primary missions that have been added to your journal. The first segment of the campaign will require you to locate four potential crew members by completing following quests:

- Dossier: The Professor

- Dossier: Archangel

- Dossier: The Convict

- Dossier: The Warlord

There are also going to be several shorter quests, including taking a trip back to the Citadel. I would recommend starting off with Omega missions, because you won't have to travel the galaxy to find the Professor and Archangel and the difficulty level of the battles will be much lower.

Completing quests mentioned above will result in your team having three of four new members (the krogan found at the end of Dossier: The Warlord quest is the only one that doesn't have to join the team in order for you to advance with the campaign).

Phase two of the campaign will begin with a single mission called the Horizon which will take place on a planet attacked by the Collectors. Completing this assignment will unlock the second set of dossier missions. This time you'll have a chance to locate three other potential crew members:

- Dossier: Tali

- Dossier: The Justicar

- Dossier: The Assassin

You can find out more about the rest of the campaign from the description of Stop the Collectors main quest.