Those who pre-order Gears of War: Judgment from GameStop can look forward to some special bonuses, most notably early access to the game's new OverRun multiplayer mode. OverRun is an objective-oriented, team-based showdown between COG and Locust forces, and it best summed up for Gears-knowledgeable folk as Horde Mode-meets-Beast Mode.
The early access begins on March 15, 2013 and runs through to March 19, though you'll have to be a Power-Up Rewards member to take advantage. All GameStop customers who pre-order Judgment will also receive a Young Marcus character skin and Lambent weapon skin, in addition to the Classic Hammerburst that comes with all pre-orders, regardless of who sells it to you.
Gears of War: Judgment arrives in stores on March 19, 2013. That same day, the early access for OverRun opens up to the general public as a proper demo for the game.