What a great game this is. It is $20. I recommend that you buy it for yourself. The stupid part is that it requires you to play quite a bit of the single player before you can play online normally. Minor annoyance, but still.
The story is very dark. I think I'm only half-way through it. Simply amazing for the price.
2014 is going to be a good year. More content, more streamlining. Be a part of history!