co-op/mutiplayer
They're keeping both of these secret but ive found two small statements about co-op/mutiplayer
"An interesting note about the multiplayer in the new BIA is that the player will have the option of fighting on a campaign map with a friend. The player and a friend will fight over territories and then gain positional advantages to take hold of Europe"
And
"New Multiplayer experience with dozens of players on each side and squad-based gameplay"
[General Perez offers Elgyn a drink]
General Perez: Drink, Elgyn?
Elgyn: Constantly.