Battlefield 4 developer blog details the game's rank progressions, assignments, more
Battlefield 4 will offer up 100 ranks, will various assignments available for high-ranking players, and all sorts of other rewards for skill, dedication and the like. This means ribbons, medals, and the franchise's "deepest online career ever." The team at DICE is also tweaking it to make it rewarding for newcomers and challenging for returning veterans thanks to a cleaner upgrade path, clearer Ribbon and Medal progression, and the ability to earn 900 unique rewards. It's rather detailed so hit up the link for a read.
Battlefield 4 will be available October 29 for PC, PS3 and Xbox 360. The game will also be made available on PS4 November 12 in North America and in Europe on November 29. The Xbox One version will be release in North America on November 19 and in Europe on November 21.