Quote (Arsenic_Touch @ Mar 29 2012 02:59am)
To get all endings, you need 4,000 effective military strength, which requires 8,000 war assets at the default 50% galactic readiness rating, which can only be raised with multiplayer.
Despite bioware claiming you don't need multiplayer to get the best ending (which they later clarified as not being a perfect ending) riiight. i
To get around that you'll have to use gibbed's mass effect save editor and alter some of your war assets. I'll give you instructions. Pming.
I'm pretty sure my first playthrough I got the perfect ending, and still missed out on a few citidel quests. I didn't tough multiplayer till after my first playthrough. pretty sure I got the perfect ending with 50% galactic readiness.