Battlefield 4's Marketing Director David Silverman was on hand for an Australian press event yesterday (hosted by EA and EB Games Australia) to show off footage from the game as well as answer questions. He has revealed new details for both single player and multiplayer campaigns.
First off, EA has yet to confirm the actual PC specs for the game, but they did say that it will be very close to the specs for Battlefield 3, which should be a relief to players not ready to upgrade gaming rigs one way or another. They are also interested in Oculus Rift support but there are no official plans yet.
Multiplayer will see the return of Battlelog. In fact, the social platform will be incorporated into the console versions of the game as well as PC. Commander Mode, originally demonstrated with a tablet, will also be available in-game. In-game Commander Mode will actually get enhancements, for example, live video feeds.
Destroying buildings will look very dramatic, even better than BF3. EA wants you to set expectations to what is possible in Bad Company 2. However, you will not be able to completely level a map. They are also considering making M-COMs destructible, when building and debris falls on them, just like in Bad Company 2.
Speaking of maps, you can turn off the power in some buildings and structures and use your knowledge of their layouts to your advantage while enemies skulk in the dark. Yes, cutting the power can also trap people in elevators.
Silverman described Seize of Shanghai as a medium sized map, and that players should be satisfied with the number of maps that will come with the game. However, he also heavily suggested that Operation Metro, the most popular map from BF3, will be coming to the game in future DLC.
Now, about that single player:
Silverman concedes they could have put more story into BF3, which is a hint on what fans can expect with the new game. They felt they built such a solid multiplayer campaign for BF4 that they were able to invest more in its single player campaign. As a result, they've strived to make a more 'emotional' campaign. NPCs will seem more realistic, not just graphics wise, but in small details like keeping their eyes on you as you move around mid-conversation. They actually had the cutscenes acted out in a soundstage (I think they're referring here to use of a motion capture stage, so that not only voice acting but motion capture was handled by professionals in the same way that it is done in the film/TV industry).
Source: B4Talk