If you really, REALLY can't wait until March 19 to play "Gears of War: Judgment" then get your butt to GameStop and slap $5 on a preorder ASAP, because that's the only way you'll get to try out the game before it's release.

That's right, no other preorders get access to the early demo, and the demo's worldwide release date is the same as the release date for "Gears of War: Judgment," so if you want to try before you buy then a GameStop preorder is your only option. Don't fret too much, the March 15 preorder exclusive demo isn't of any campaign content but instead features an advance look at a new multiplayer mode called "OverRun." What is "OverRun"? I'll let Xbox LIVE's Larry 'Major Nelson' Hryb break it down for ya.

OverRun is a thrilling new class-based competitive mode that pits Locust and COG soldiers in a head-to-head battle unlike anything "Gears" fans have experienced yet. An objective-oriented mode that lets five-player teams alternate between playing as Locusts and COG soldiers, OverRun marks the first time that a class-based, competitive multiplayer experience has been introduced in the "Gears of War" series.

As an added bonus, multiplayer experience points (XP) earned will carry over to the final game for players who purchase and play "Judgment" in the first week following its U.S. release, allowing them to get a jump on the competition and begin unlocking special rewards, like new weapon skins, medals and achievements.

When I read the phrase "class-based competitive multiplayer mode" it's hard for me to conjure up an image of what that might look like. Fortunately, there's YouTube, where I found this video of "OverRun" gameplay footage to give you (but mostly me) a better idea of what the hell the game will look like.

The XP bonus is cool too, as there's nothing worse than spending time on a game that requires significant grinding only to find out your time didn't add up to anything. It's only a few points, sure, but it's good to see Epic Games had the foresight to reward online players for playing the demo. It bodes well for the rest of the game.

Gamestop preorder also get two skins for multiplayer modes. One is of a young Marcus Fenix, six weeks after the Pendulum wars during "a time before he was hardened by his long imprisonment." The other is a Lambent weapon skin that can be applied to multiple weapons in multiplayer mode.

If you didn't preorder at Gamestop, you will still get the Hammerburst for use during online play. And you'll need it, since you'll be about a week behind the thousands of Game Stop customers who beat you to the chainsaw bayonetting.