Engineered specifically for the PC by Red Storm Entertainment, Rainbow Six returns to deliver the tensest close-quarters battles ever experienced online. In this episode, Rainbow faces independent terrorist threats, tied together by one common element - the Legion virus. Rainbow must determine the connection between the terrorist threats and the virus.

• Change in story and mission composition - Rainbow faces independent terrorist threats tied together by one common element - the Legion virus. Rainbow must determine the connection between the terrorist threats and the virus.
  
• Enhanced tactical gameplay allows you to immerse yourself in tense close-quarter combat, where split-second decisions mean the difference between life and death.
  
• Superior multiplayer experience - Rainbow Six Lockdown™ has the total multiplayer experience, including a revolutionary class-based mode where players choose from four specialized operative classes, each with unique gameplay advantages.
  
• Advanced weapons and equipment - Complete your mission with all of the tools of the trade including new items like lock fusers, laser trip mines, and the deadly virus grenades.
  
• New "classic" maps - Rainbow Six Lockdown PC provides nine maps including three new "classic" Rainbow maps voted on by the fans.
  
• Tension-building sound effects (creaking floorboards, whispers and hostages begging for their lives) hint at a threat around every corner.
  
• Increased visuals - All levels contain increased visuals, accomplished by increasing resolution of textures and increasing polygon counts. In addition, lighting of spaces dramatically improves the visuals of the game.
  
• All new user interface includes new radar element added to the in-game HUD - part of the motion sensor vision mode.