Treyarch has revealed a few Black Ops 2 multiplayer details at the German games show Gamescom.
Interesting points are that kill streaks have been replaced by score streaks, which should award team play not just kills.
There is also a new class creation system, which allows you to pick any 10 pieces of content for your class, but you don't have to take content from a category. So you could not spend a point on a secondary weapon and use that point for an extra attachment.
Other things revealed at this Alpha stage were:-