Smash and Grab

Queen's Gambit is a StarCraft II Wings of Liberty mission occurring immediately after the start of the zerg attacks on the Terran Dominion, four years after the Brood War.

The Moebius Foundation was interested in an alien artifact on the world of Monylith, and Tychus Findlay suggested the Raynor's Raiders pick it up and sell it to the Foundation.

The planet was occupied by protoss fanatics who guarded the artifact, and wouldn't turn it over, even to former protoss allies such as Jim Raynor.