Uniting Quarian & Geth, Mass Effect 3 (FemShep, Renegade)

Being able to unite the Quarian and Geth in ME3 requires a lot of pre-planned work (or luck, if you played "correctly" to allow it). All of the following *must be true* in order for this to even be possible:
--- You must have at least 4 full bars of "Reputation", an ME3 mechanic.
--- Tali and Legion both have to be present. A no-save-imported play does not allow this, as Tali is exiled (by default) and Legion would have been turned over to Cerberus in ME2 (by default).
--- The side-quest/mission "Rannoch: Geth Fighter Squadrons" has to have been completed before this one.
In addition to the above (all mandatory), several other things (but not all), play a factor in whether or not you have the Paragon/Renegade decision options:
--- Legion's loyalty mission in ME2: if you destroyed the "heretics", you gain a significant boost here.
--- Tali's loyalty mission in ME2: if you prevented her exile without disgracing her father (presenting evidence against him), you gain a significant boost here.
--- In ME2, if you had enough Paragon/Renegade points to make Tali and Legion see eye-to-eye in their argument, vs. siding with one of them, gains a small boost here.
--- Having completed "Rannoch: Admiral Koris" here in ME3, gains you a small boost.
--- Admiral Koris is alive after "Rannoch: Admiral Koris" here in ME3, gains you another small boost.
As you can see... you need a LOT of stuff to go right in order for this to be possible, despite Renegade/Paragon style. Hope you enjoyed!