S.S. Lorelei is the seventh mission in Syphon Filter 3. While Lian testifies in Washington D.C., the player works with Maggie Powers of MI6 to scuttle the Lorelei vessel, which is carrying shipments of the virus. They successfully complete their mission and sink the boat, but a revelation that the cargo survived necessitates another operation to permanently destroy the remaining traces of Syphon Filter in the next game.