You guys have only seen Capture the Flag at this point, but there's more where that came from. In the coming months we'll be able to open up a little more on this subject. Apart from remodeling them with a higher poly count, we've spent the last year thinking about how best to use vehicles in the context of both solo and multiplayer. You'll see a few other examples of this in other game types. Vehicles are definitely not an afterthought in multiplayer.
Balance is one of the things our designers concentrate on the most.
That focus on balance carries over to the solo campaign, where every element is a tool for us to tell a story. In one mission we might get the emotional effect we want by putting you into a jeep and letting you blaze a bloody, adrenalin-drenched trail through a twisty mountain pass. In another mission it might make the most sense for you to creep on foot through a sea of fog in an alien swamp, without a vehicle to drown out the stealthy sound of your opponents closing in from all around you. In another mission we'll do something completely different based on where you are in the story arc and what we want you to feel. Read the whole thing here .