Intelligence reports confirm that Serbian militia forces have recently acquired advance Russian surface-to-air missile systems from a black market source in the Air Defense Ministry. One such system has been made operational near the port facilities of Belgrade City and has already been responsible for the destruction of several NATO planes. Reloads for the SA-15 system are limited, but a fresh shipment of missiles has recently arrived by ship.
In February 1999, during NATO bombing campaign in Yugoslavia, Sam Fisher was sent on a mission for the National Security Agency and Third Echelon to Belgrade City, Yugoslavia. With help from Irving Lambert and Anna Grímsdóttir, he was sent to destroy SAM missiles being supplied to the Serbs. His first objective was infiltrate a cargo ship, and destroy several missiles on board. After destroying the missiles he infiltrated the hideout where the launcher was being kept to find evidence that the Russians were supplying the weapons.