DICE has updated Battlelog, the online service that lets players connect to Battlefield 3 matches and interact with their friends, allowing them to create custom classes right from the browser.
This functionality is nice for people who find themselves wishing to make changes outside of the actual game. Perhaps you're on the FPS General forums and someone mentions having success with a particular loadout? Players are able to jump on to Battlelog, make those changes and they will be reflected in the game. Alternately, you can copy a friend's loadout and apply it to your game.
Also discovered with this update is a 20x zoom scope for the L96 sniper rifle. The attachment is currently locked so no word on when that will be unlocked or if it is part of an upcoming DLC offering.
Stay tuned for more info and check out Battlelog to get your classes sorted out in the browser at http://battlelog.battlefield.com/!