If you do not meet all four of these requirements, you CANNOT pick either of the Persuasion options, and you will have to choose between either the Quarians or the Geth using the options on the right side of the Dialogue Wheel.

The Mission ' Rannoch: Geth Fighter Squadrons' needs to have been completed.

Legion needs to have been activated in Mass Effect 2 and survived the Suicide Mission so that they can be present in Mass Effect 3.

Tali must have survived Mass Effect 2's Suicide Mission to be present in Mass Effect 3.

80% of the Reputation Bar needs to be filled.

You must meet ALL FOUR of these requirements, or else you cannot select these options. The first check is whether you can even pick these options in the first place. These are two of the hardest-earned options in the game, and have Shepard make a plea to the Quarians to call a ceasefire so that both them and the Geth can live. If you've played your cards right, you can have a third and/or fourth option available to you: the '' Charm option, and the '' Intimidate option. Persuasion: Rally the Fleet / Warn the Fleet Below is how each plays out, and what you need to do in order to unlock the Persuasion options. Once Legion / The Geth VI starts uploading the Reaper code and Tali / Shala'Raan's pleas to call off the attack do nothing, you'll now have up to four options to pick, each with drastically different results. Similar to Virmire, this is actually a false choice it doesn't matter what you pick here, the true decision comes immediately afterwards. Initially, you're given the option to pick 'Upload the code' or 'We're letting the geth die'. Tali (or Shala'Raan if Tali died in Mass Effect 2) will protest this decision: since the Quarians are already attacking the Geth, uploading the code will cause the Geth to retaliate and wipe them all out.

Legion (or the Geth VI if Legion died in Mass Effect 2) wants to upload the Reaper code to the Geth collective, as it gives them true intelligence.

With the Reaper defeated, the Geth are free from its control, and now the Quarian fleet turn their guns at the Geth ships. This scenario takes place in the final mission dealing with the Quarians and the Geth, titled ' Priority: Rannoch'.

Mass effect 3 tali unmasked