Battlefield is a series based on vehicle gameplay. Without vehicles Battlefield would just be another Call of Duty copy cat. The series is developed by the Swedish company EA Digital Illusions CE, and published by Electronic Arts. The games feature a greater focus on large maps, teamwork and vehicle warfare than traditional first-person shooters. Battlefield series games usually focus on large, online multiplayer battles, with emphasis on piloting a number of vehicles as well as team-based infantry combat. Playing in squads has also become a major element of games in the series. Since Battlefield 2, all games in the series centrally record online statistics for each player allowing the players to receive rank promotions and weapon unlocks based on their statistics as well as awards such as medals, ribbons and pins.