Multiplayer mission listed in dark orange???

[Saligun]

If you look at the list of multiplayer missions in dark orange it seems very possible that all these could be some of the early DLC's missions,maybe someone who played the JP version could check that version and see if any of those missions where in the game before any DLC was released...

[Zarode]

Co-op missions, they are in the JP version. They basically mean you WILL need more then one person to complete it, usually. Most of the time, you won't get an S rank for it at the results because there are enemies behind four button doors.