Yes, and you can even pick your own character.
Assassin's Creed has only a single player campaign Another person: That may be so, but Ac III is Multiplayer
You unlock them by making progress in single player.
Unfortunately it is not. So far all the POP games have come out single player
Single player in Single Player, and multiplayer in Multiplayer.
Yes- both single player and multiplayer DLC will be available for purchase after launch. You can even pre-order a season pass right now.
No, it is single player only. There is no online multiplayer.
No, multiplayer only.
yes
Yes there is single player, and multiplayer.
single player only
No. It is not multiplayer. From cloud180: Though Assassin's Creed Brotherhood will have multiplayer functions including like a spy vs. spy scenario where your character will be hunted by another assassin while you are on your mission.
In Battlefield 3, there are a total of twelve single-player campaign missions, six two-player co-operative missions and nine multiplayer maps; an addition of four multiplayer maps in the downloadable content pack Back to Karkand.