A series of 7 new campaign missions and 3 new challenge missions tell the story of the struggle on planet Gehenna - an unforgiving hellscape engulfed in molten lava, volcanic eruptions, and hordes of Arachnids.

Human interest in the sector is centered on Vilon Station, a majestic space station orbiting just above the planet’s atmosphere. A stream of massive freighters feed the station’s endless thirst for fuel, extracted and refined through industrial facilities on Gehenna’s surface.

Being located in the center of profitable trade routes between the planets Earth, Kwalasha and other Federation colonies, Vilon Station serves a vital nexus for commerce, refueling and resupply.

Until now, the protection of personnel on Gehenna has been in the hands of contracted mercenary groups, composed of gritty veterans and adventurers. With the expanding fronts of the Bug War however, Arachnid hostility has been sharply escalating. In light of this perilous situation, Vilon Station’s director has implored the Sky Marshal to dispatch the Mobile Infantry to Gehenna. Their mission: to take over from the mercenaries and safeguard humanity against the ravenous Bug hordes!