Noticed on VE3D that Ubisoft will be releasing a single player demo for Rainbow Six 3: Raven Shield next week. Here's what it will contain:

• 16 weapons are available (M12, Mac11/9, MP5A4, MP5K PDW, MP5SD5, P90, Uzi, AK-47, M1 shotgun, Dragunov, PSG-1, RPD, 92FS, AP ARMY and USP) and all of them can be equipped with weapon gadgets (Mini-Scope, High Capacity Magazine, Sound Suppressor or Thermal scope)
• Single Player featuring the Oil Refinery mission.
• Playable in all 4 Custom Mission modes (Practice, Terrorist Hunt, Lone Wolf and Hostage Rescue) with three levels of difficulty for each.