The game is easy. I beat it in less than 6 hours of accumulated play. I'm doing it on legendary next for sure. For those of you that think they left you with a cliff hanger... no they didn't. Just let the credits pass on by and you will see a video that solves the question. Let's not spoil this for others. I just wanted to let those who have beat it, and are upset by what seemed like a cliff hanger, know what to do too see the ending. There were a bunch of kids at school today talking about it and how the ending sucked and they left you at a cliff hanger. So when I came home I jumped right on cuz I don't work today, beat it, watched the credits (I always do don't ask) and saw the video.
The game is only fast and easy if you make it that way. Playing on easy or normal will obviously make it a quick play through but legendary by yourself takes time, though you can do coop to shorten it up a little. I've allready learned my lesson about waiting until the credits are over so I didn't miss the ending scene