Duty calls: Publisher Activision released a playable demo of the fourth Call of Duty military shooter, developed by Inifinity Ward.The Call of Duty 4: Modern Combat demo package weights 1,37 GBytes and requires you to have:

1. Minimum Specs
2. CPU: Intel(R) Pentium(R) 4 2.4 GHz or AMD(R) Athlon(TM)
3. 64 2800+ processor or any 1.8Ghz Dual Core Processor or better supported
4. RAM: 512MB RAM (768MB for Windows Vista)
5. Harddrive: 8GB of free hard drive space
6. Video card (generic): NVIDIA(R) Geforce(TM) 6600 or better or ATI(R) Radeon(R) 9800Pro or better

Here's a list of available mirrors:

1. Download @ Yahoo (YahooID required)
2. Download @ Gamershell.com
3. Download @ 3DDownloads.com
4. Download @ Fangaming.com
5. Download @ eXp.de
6. Download @ Fragland.net
7. Torrent @ Mininova.org