Red Orchestra 2 had a rough launch. While it is a great game, there were some serious issues to deal with, including bugs. One of those issues was stats not being recorded correctly. Players would sometimes have random and ludicrous numbers attached to their profile. The achievement system was also completely bonked.
Since the game's launch, Tripwire Interactive has been hard at work putting out patches. Many of the major issues have been resolved, and they are still fine-tuning the experience. Now that they have a lot of the bugs out of the system, the studio has reset players' stats and achievements. This means that everyone is starting over from square one.
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To help make it easier for you to get back to your level before this reset, you will be able to earn double XP for a few weeks. If you were an early player, you'll also get a special achievement called "In B4 Reset." Tripwire wants to find some way to reward players with this achievement later.
Red Orchestra 2 has already outsold the original Red Orchestra, and Tripwire's successful zombie-slaying game, Killing Floor. If you haven't played it, you really should. If you picked it up at launch and were annoyed by the many bugs, this might be a good time to go back and check it out again.