Yes it does - http://battlelog.battlefield.com/bf3/ne ... 220020096/
What: Double XP event to celebrate the launch of Battlefield 3: Close Quarters
When: 00:01 AM PDT June 16th – 11:59 PM PDT June 17th
Criteria: All players, both Premium and non-Premium members
Servers: Any ranked server
Game modes: Any
Maps: Any (including base game, Back to Karkand, and Close Quarters)
What: Double everything!