I wouldn't want them to go too far out of their way to include it, but I guess it would be really nice to see coop in this game. You already have a team of people that is player controlled either way, so I don't think you'd have to change too much gameplay-wise to turn the single player into a coop ...

This might be a silly question, but aside from random chance, is there anything else in the game that affects what missions you get? It seems that for a lot of my games after a certain amount of time has passed, a certain mission types will seem to really dominate the list. It's not always the same ...