The prob i have with the story is that it's all pretty generic, uninteresting, been there done that sci fi. And although it seems a lot of thought has been put into the universe, how big did it really feel during the game? It didn't feel epic at all, it felt like the words coming out didn't match what was really happening, you barelly got into contact with multiple species, and they were hardly relevant to the story, and the universe we played in seemed filled with human characters, etc
It was as epic as Gears of War 1, heck, maybe even less.