TheFontBandit's Cosplay Adventures
I played a total of 3 MP games, and by the time I finished ME3, my Galactic Readiness had degraded back to 55%. I still got the “best” ending. I think it really is possible to get enough War Assets without MP. You just have to scan every system and get 100% of the scanned assets in the game.

I played a total of 3 MP games, and by the time I finished ME3, my Galactic Readiness had degraded back to 55%. I still got the “best” ending. I think it really is possible to get enough War Assets without MP. You just have to scan every system and get 100% of the scanned assets in the game.