I recommend this game. I played this & dlc through as singleplayer (with PC). With CO-OP mode this would be even more fun!

I played this game and the following as Nightmare difficulty. The first chapter was really good, story was good and difficulty was enjoyable.

But in the second chapter, The Following, I think Nightmare difficulty was ridiciously too hard sometimes, for example sometimes huge horde of Virals attacks on you, and when you kill them, there comes another viral horde on you, and it repeats itself. I don't know about others, but for me I didn't level max with nightmare difficulty and it was a shame. Maybe it was because you used buggy so much and not needed to slash so many zombies so you got some driver xp points but lacked of survival/power/agility points. And the storyline wasn't so good in the following. Quests were pretty simple, and similar to each other and nothing new to compared to first chapter.