Forum:Master and Commander Achievement

So apparently you get this just before the assault on the cerberus base but how? I did absolutely every side mission possible but my galactic readiness was only 54%. Is galaxy at war (i.e. multiplayer) a necessity? What are the conditions of getting this achievement as "Deliver most of the Galaxy at War assets to the final conflict" is a bit vague?

Also is the Defender achievement dependent on multiplayer too ("Attain the highest level of readiness in each theater of war")?--Mattman909 22:30, March 12, 2012 (UTC)