Highway
Highway will support all game modes, and has been described as "infantry fighting in tight city streets.Niklas Astrand's design thoughts mention:
"One of the inspirations for this map was a photo of a night time skyline of Tehran which now is basically the same vista that is available in the game. You start up on the hills above the city outskirts and eventually work your way into town. This atmospheric night-time map, where you can see rockets lighting up the sky, has a balanced mix between vehicle and infantry focus. It plays length-wise and starts semi-open with plenty of room for vehicles, but ends on a much more urban and tight note with less focus on vehicles and more on infantry."
Basejump
Similar to Highway, Basejump is compatible with all game modes. It appears Basejump takes you "fighting in winter mountains." Astrand comments about Basejump:
"Damavand Peak, internally known as Base Jump, is built on the idea that we want players to be able to base jump, and features our most extreme height differences ever in a Battlefield map. Attackers in Rush and Squad Rush will start high up on a mountain ridge above a mining facility. The only way down into the valley is to somehow make the 500 meter descent. The further the attackers progress in the map, the more vehicle warfare will be present. There is also a large tunnel section dug into the mountain side at the bottom of the map, and the view when you look up at the starting location is spectacular."
Operation Firestorm
Finally, Operation Firestorm is centered around "all out desert warfare," something that Battlefield fans have come to expect. Astrand mentions:
"One of our largest and most vehicle-friendly map, Operation Firestorm is the classic Battlefield gameplay taken to the extremes. Size-wise, and with some puzzle skills, you could actually place three Atacama Deserts — one of the largest maps from Battlefield: Bad Company 2 — within the playable area of Operation Firestorm. This is a wide-open desert map where the burning oil fields in one direction are contrasted by clear blue sky in the other direction. Construction sites dotting the area bring interesting possibilities for infantry to hide in elevated positions, spot vehicles, and take them down by mortar or RPG."
DICE has also mentioned that there will be a "massive DLC plan" for the game. With this amount of content streaming, Battlefield 3 should have an excellent life span.
It appears that DICE has been working hard to provide gamers with quality content, starting first with their level design. The graphics and details (as we have seen in the alpha and beta) are of paramount quality, and this sort of attention to detail is what will make Battlefield such an amazing experience.