Co-op is a must. I really like KZ2. However, I'm getting really sick of how most games are one thing at a time. Most games are single player, splitscreen, or online. Games really need to put the three together as a standard. I should be able to play the campaign, have a friend come to my house and join as player two, then have one of my online friends join as player three in any mode whether it be campaign or skirmishes. KZ3 probably will not have that, though. No doubt it will still be amazing.
Being a big Command & Conquer fan, I wouldn't mind if Guerilla pulled a Microsoft and released Killzone Wars.








