NO! Even if it could be done nicely I wouldn't want it, not every game needs multiplayer to be good. It seems like every game has it and if they don't they add it anyway to a game that does not need it (Bioshock, Mass Effect, Dead Space). It's rare to find a good game without it, and it's even harder to find one that continues as a series without introducing it. I get why they do it cause they want to appeal to more people and have more features to make more money but still. It annoys me to no end.
Originally Posted by anonymau5
That's not what I was thinking. You both play as two different people in a group, and you both have your own decisions. You could jump into your friends game as an NPC and choose your own decisions in that group.
Sounds like it would be a very complex and difficult game to make and would take years to do it right.