A Japanese promotional poster for the upcoming Battlefield 3 contains a few extra details we weren't aware of before. Like, say, the fact the Xbox 360 version of the game will ship on two discs.
That's all the info that can be gleaned from the pic, so there's no idea just what content is spread across the two discs, or whether the poster is even accurate.
At a guess, though, I'd say one disc would have to contain the "campaign" stuff (singleplayer and co-op) while the other would have all the multiplayer content on it. Anything else would be bananas.
While the fact the Xbox 360 is becoming increasingly unable to keep games to a single disc is a pain in the ass, at least in this case it's not too big a deal. It's not like you'll be changing discs in between multiplayer maps. We hope.
We've contacted EA for clarification, and will update if we hear back.