PS3 players couldn't I don't think. But I believe you would need to:
Complete Grissom Academy mission WITH Jack alive.
Complete Aralahk Company mission with Grunt alive. (Not entirely sure which war asset is better between Rachni and Aralahk company though so I'm not sure how to end this one)
Rewrite the Geth Heretics in Mass Effect 2 and have Legion loyal.
Favour peace instead of war and save Tali from being exiled in ME2
Broker peace between the Geth and the Quarians.
Have Wrex survive Virmire mission.
Save the Rachni Queen (If she doesn't does Grunt's mission sitll happen or are you automatically gien the War Asset?)
Broker peace between Krogan and Turians.
Disable the Turian bomb. If Cebrerus sets that thing off it will mean that there will be a lower amount of Krogan forces and therefore a smaller amount of EMS given.
Help Jondum Bau. He becomes a War Asset.
Leave NO ONE behind. This means saving Kirrahe, the original council and the entire Normandy Crew.
With Zaeed alive you get access to a side mission in ME3 anda Volus bombing fleet.
Help Aria gain the allegiances of all three merc bands.
Have Miranda and Samara survive the ME3 side mission. This requires their loyalty and for Miranda (not sure about Samara) several points of help before Cerberus HQ Assault. (this also means picking Samara over Morinth in ME2 as Morinth only does the you've got mail thing)
Simply put it is probably but you will require the perfect playthrough throughout the entire trilogy as well a user guide for ME3 and enough spare time to do EVERYTHING (and I mean EVERYTHING) without casualty.
Each individual you know (Grunt, Kirrahe, Legion, Tali etc.) who takes part in the battle for Earth each come with their own war asset score.
It'll be hard without Multiplayer (you'll need twice the core strengthy with means you need more people to survive the events of the previous two games.Also I'm not sure if it helps but I wouldn't recommend handing Cerberus the Collector Base... just a hunch.
Note that I haven't done this myself but I have two weeks off starting tomorrow so I may see if it is possible.
Modifié par TheMightyG00sh, 29 mars 2012 - 03:37 .