Legion: House Divided

This unlikely comrade has some issues to settle concerning his own kind. A great divide between who Legion refers to as "heretics" and the typical, more peaceful members of the breed threaten to bring peril to the survival of their species. The existence of these heretics (and now Legion) debunks the generally accepted theory that Legion's kind had little autonomy. Legion wants you to head to the Heretic Station to stop the heretic minority from unleashing a virus that could have far-reaching repercussions beyond the annihilation of free will. The Heretic Station can be found in the Sea of Storms.

With the threat of the virus hanging overhead and the heretics busy with scrubbing out Legion's clever distraction, the squad must waste no time in infiltrating the station to the main core. You can pick up a Medi-Gel on your way down into the first room. Legion cautions you that tripping the green data streams along the floor will awaken the geth, but the locked door doesn't let you pass until you pass through the data stream lined in front of it. Look to the right to find three dormant geth. Get the first shot off to jolt them back to life, then destroy the geth hub behind. The hub can be salvaged for parts as well. Repeat this process of destroying geth hubs to deactivate alarms and salvaging parts for credits throughout the station.

In the outside hallway work quickly to override the two turrets and have them deal with the approaching geth for you. The next room is lined with more data streams this time flowing into two separate hubs. Choose your cover position wisely to avoid getting flanked. Eventually, you reach a room with two more re-programmable turrets that will help you eliminate the attacking geth. A power cell and Medi-Gel lay next to the opposite door that leads to some Palladium as well.

Once you step through the next door, you are immediately under fire by some geth Troopers and a Hunter. Hack the terminal behind you to acquire Cyclonic Particles. Follow the linear path down to the next room, where more data streams snake through the long, winding path. Again two separate hubs--you know the drill.

When you finally reach the main terminal, Legion starts deleting the virus from the system, which takes time. Meanwhile all the geth are alerted to your presence and will storm the place in an effort to stop the deletion of the virus. The geth come in waves from the lower levels and fan out to the ramps to close on you. You have a good view of the lower level by staying at the top. Luckily, a good number of turrets are setup around the room, all of which can be repurposed to aid you with thinning out the arriving forces. Don't activate them all at once--just a few at a time to be conserve enough to last until the final wave.

The time has come to face a decision that may or may not have far-reaching consequences: rewrite the heretics or kill them? Rewriting them grants you Paragon points, while the other option--killing them--only drags you deeper in Renegade points. Whatever your choice the station is rigged to blow, and you must quickly make your escape to safety. You have three minutes to exit through the now unlocked door to the right of the terminal and return to the shuttle, but the geth don't make it easy and put up a final line of defense that includes a Prime.

Conflict: Tali and Legion:

Assuming you've completed Tali's loyalty mission as well, trouble stirs on the Normandy when you return from the mission. Tali is offended by Legion's presence on the ship and his attempt to upload data about the quarian flotilla to his people. A sufficiently high Paragon or Renegade score is required to retain both crew member's loyalty. Otherwise, as in the dispute between Miranda and Jack, you risk losing one's loyalty.