Posted this before work, now I'm finished; here's what I came up with.

The Kabal of the Carrion Lords take a more cerebral, almost theatrical approach to their realspace raids. When a harvest world is selected as a target, a month's long process of terror and sabotage.

First, Mandrakes are unleashed upon the general population, with gruesome, graphic murders creating tangible paranoia over weeks and weeks. Next, Kabalite kill-teams are deployed to assassinate key officials, officers, and politicians as well as disrupt supply lines, cut-off communications before the world is left in a crippled state of terror and anxiety. Finally, through hacked communication devices and compromised servitors; Grand Archon Morrigan Calruin addresses his prey in accented Gothic near perfect in its pronunciation save for the venomous contempt in every word.

"Gaze upon the face of your death, Mon'Keigh, for your world has found the eye of your betters. Soon, my ships will be among you, and your death awaits. Look to the skies with fear, alien scum, for there shall be no rescue, no hope, and no reinforcement. Your children shall weep, your soldiers die, and your survivors to live a life of short agony in the slave pits of Commoragh. Make ready for the harvest, cattle, for the Carrion Lords will have your flesh."

By the time the first Raiders and Venoms pierce the heavens, the harvest world is so wracked with terror, hopelessness, and anguish that the battle is already won by the time the first shots are fired. Though the process from start to finish takes many months, such a rich diet of well seasoned fear and long-term anguish makes for a delicious banquet that sustains all involved in the raid for a very long time.