- Skill level for online - Choose recruit, regular, hardened or veteran. If others don't think you fit in the category, they can press a button and when a player gets enough people to report them, they will not be able to play that difficulty level anymorde.

-Matchmaking filter - Filters age (no more 9-y-old's), Plus connection level (wheter or not you will make the game lag), skill level (see above)

-Map selection - Make it so you can limit matchmaking to just your favorite map.

-Inclusion of Nuketown. - Best Map Ever. Period.

-More wager matches! - Self explanatory

-Awesomer zombies - The innovation of zombie mode completely skyrocketed with Black Ops. First, there was the first 5 maps (Nacht, Veruckt, Shi no, Der Reise, and Kino), pretty normal, then they introduced the JFK level that took place at the pentagon, Ascension was prettty normal but it included 2 new lethal grenades, then Call of the Dead, which had famous actors as playable characters, a boss that was nearly unkillable, 2 new guns, one of which turned zopmbies into humans, and the easter egg, a pain in the arse that is well worth the crapload of Gamerscore. Next came Shangri-La, which continued with the Eater Egg trend and a new shrink-ray gun, plus 2 new kinds of zombies. Lastly, you get Moon. Moon has an insanely tricky easter egg (175 Gamerscore by the way), not to mention half the map is low-gravity, a new device called the Hacker, No Man's Land makes a level itself, plus there is a new Perk called Mule Kick