During the two years since Battlefield 3 the border has been heavily fortified. The few openings in the now massive wall feature dynamic gates and vehicle blockers, but sustained fire opens new routes where desired. The communications mast has been rebuilt on Hilltop, and serves as an excellent vantage point until someone infiltrates the bunker below and blows up the entire thing. The seasons have changed, and Caspian is clad in beautiful autumn colors. Dry grass now covers the sweeping fields and little more than a small spark can kick off an uncontrollable grass fire.