Today, Epic Games and Microsoft kick off an extended Gears of War 2 2XP Bonus Weekend (thanks Destructoid).
Starting this morning and stretching through September 8th, everyone can earn double XP in multiplayer. In addition to this, winning teams in competitive public matches are being awarded with an extra 500 points.
Also, Horde has been moved up to "Hardcore" difficulty, with "every tenth wave populated entirely by Sires."