You'll be able to track all of your progress through Battlelog (BL), a complete social network built for Battlefield 3. Use of the service is mandatory; if you have an active Internet connection the game can actually only be launched from your web browser while you're logged onto Battlelog. Single-player, co-op, server browsing, and matchmaking are all handled through the network's website. If, however, you set Origin (EA's answer to Steam, and BF3's other required online "service") to offline mode, the game will launch directly to the single-player campaign. Despite this hassle, Battlelog does its job quite well. Its main page features a Facebook Wall-style "Battle Feed" that details your accomplishments in chronological order, as well as a a list of "upcoming unlocks" just to ensure you never forget that if you play just a bit more, you'll get more stuff.