DICE's General Manager, Karl Magnus Troedsson, announced today that there will be a special double XP event starting on November 28 for Battlefield 4. The reason for the special event is due to the recent server issues that Battlelog had thanks to a lengthy DDoS attack and for various PlayStation 4 crashing issues.

In addition, any player that logs into the game on December 5 will get the M1911 pistol scope. This item was previously only available to those that worked at DICE.
At DICE, we are committed to you, the fans, and view the game as a live service. I am extremely proud of the people at DICE and everyone across EA that contributed to the development of Battlefield 4. However, I am less proud to see that the game has experienced some turbulence during the launch period. While some platforms have had only minor problems, others have had more than their fair share of issues. Resolving the launch issues is our #1 priority. In fact, we are so serious that we have the entire team working to stabilize the game and we will not move on to other projects until we are sure that Battlefield 4 meets – and exceeds – your expectations. It is the right thing to do.

To show our appreciation for your patience as we work through these issues, we are announcing that from November 28 through December 5, we will reward all players with Double XP for every multiplayer match they complete. We understand that the launch issues may have impacted your progression, and we want to do everything we can to help you get back the XP that you may have lost. Also, to cap off the week, on December 5 we will give all players that log in to Battlefield 4 multiplayer a M1911 pistol scope. This special sidearm scope, previously reserved for our DICE developers, has a 3X zoom and is available for all classes in Battlefield 4.

There is (or was) some XP event going on last night as well that I noticed. Not sure what that was all about but there was definitely bonus XP being given out at the end of each round. So, maybe there's some bonus thing going on this weekend too?