I like multiplayer games. From what I have heard, Spacemarine is going to have co-op mulitplayer and that is something I love. I must have played through the CoD5 campaign co-op with friends at least 5 times. Many many hours playing Minecraft with friends. I've played Men of War: assault squad co-op a couple of times. The thing I like with co-op games is the experience. You are playing with your friends. You have incredibly funny moments when you all decide to gang up on one person and flip them over in the tank mission in CoD5 and you have the moments when you are all hiding in a dark cave with no torches and creepers blocking the way. I could write a story of our time playing them and that is what I love about co-op and also, multiplayer. You don't need some plot because you make it yourselves. You don't need back-stories and character development because you are playing with your friends. A good co-op or multiplayer can stand up on its own despite what Yahtzee says and I think I might end up playing a lot Spacemarine co-op and I support games having it.