Microsoft Corporation has recruited Activision, Inc., and Infinity Ward to provide prizes for its newest online offensive: Call of Duty 4: Modern Warfare LIVE Fire Weekend 2008, a 72-hour play and win sweepstakes full of games and prizes beginning on Friday, April 18 at 12:01 a.m. EDT through Sunday, April 20 at 11:59 p.m. EDT. Hourly prizes will be awarded throughout the weekend, including Call of Duty 4: Modern Warfare shirts, Infinity Ward autographed posters and Xbox LIVE point cards. One Grand Prize winner also will receive an Infinity Ward autographed Xbox 360 Elite console and a Limited Edition Call of Duty 4: Modern Warfare faceplate, among other items. Players can register now through April 17, 2008 at 11:59 p.m. EDT at www.xbox.com/livefire/.

In addition, on Friday, April 18 from 6-9 p.m. EDT, gamers can play with more than a dozen developers from Infinity Ward and then on Saturday night from 9-11 p.m. EDT Mixed Martial Arts phenom, Jens “Lil Evil” Pulver (gamertag: COD4JensPulver) will join the online action.

Add these gamertags to your friends list:

• Fourzerotwo
• COD4Chance
• COD4Justin
• COD4Ed
• COD4David
• COD4Neel
• COD4Geoffrey
• COD4Jon
• COD4Jeff
• COD4Drew
• COD4Ryan
• COD4Todd
• COD4Joel

More details on the Call of Duty 4: Modern Warfare LIVE Fire weekend 2008 and information regarding terms, conditions, and official rules are available on the official event page: www.xbox.com/livefire/.