Never before have the forces aligned. United by name and by cause, The Fallen, Pagans, Crusaders, Intruders, and Stroggs must channel their power into an allied operation where teamwork is the only method of mass destruction.
Most popular community and official game content for the past week.  (?)
What does popular mean?
It means the content you're seeing has been rated up more than it has been rated down for the given time period.