The 9K330 Tor is a Russian low to medium altitude, short-range surface-to-air missile system designed for engaging airplanes, helicopters, cruise missiles, precision guided munitions and unmanned aerial vehicles. It appears as the main Russian self-propelled SAM in Call of Duty: Modern Warfare 2.
Call of Duty: Modern Warfare 2
The 9K330 Tor is seen in a few levels of Call of Duty: Modern Warfare 2's campaign, it is used by the Ultranationalists in the missions "Exodus" and "Contingency". The Ultranationalists used the 9K330 Tor to destroy Task Force 141's UAV in "Contingency".
In addition, the multiplayer map Quarry has several 9K330s around the map.