It's multiplayer fun all weekend long for Call of Duty 4: Modern Warfare (PC, PS3, Xbox 360) fans as Infinity Ward celebrates the release of its Game of the Year Edition version of CoD4. The developers will be showcasing the LIVE Fire Weekend this April 18 to 20 with a host of featured events that's sure to entice FPS addicts.

Lined up for the weekend is a 72-hour Play & Win Sweepstakes, which will be giving away one prize for each hour, and a special GamerchiX event. In addition, gamers can get the chance to challenge the development team in an online deathmatch and even get Mixed Martial Arts champion Jens Pulver in your sights.

Make sure to keep yourselves posted on Xbox Live during those dates and try your hand out against the many CoD4 players around the world in this weekend event. In any case, keep coming back to this spot for more updates to this FPS gaming phenomenon.