The Gate to Gortuloth Campaign takes place on Agrona, a planet far out past the Eastern Fringe. Agrona's star system is very close to the Hadex Anomaly and its abnormal temporal effects. Imperial scholars theorize that the proximity to Hadex and its mysterious energies has contributed to Agrona's isolation.
As you approach Agrona, the first thing you'll notice is the odd asteroid field surrounding the planet. These asteroids are composed of a type of crystal unknown to Imperial tech adepts. To take up positions in high orbit, fleet ships would have to be on constant alert for shifting patterns in the asteroid field. A difficult task in itself for even experienced fleet crews. Added on top of the dangers of collision, the asteroids have another element of peril. At unpredictable times, immense arcs of energy lash out between random pairs of asteroids. The first Imperial vessel to get caught between an energy arc was severely damaged. It is assumed that ships belonging to the heretics met with similar results. Initial studies involving the asteroids have pointed to evidence that show them as fragments of what was once a larger xenos construct. The original purpose of this construct remains unknown.
Due to the hazards of maintaining close orbit, ships of both the Imperial and Chaos fleet are not able to provide reliable support to their own ground forces. Availability of orbital bombardments are rare and supply runs are difficult to coordinate.
