I'll try to work on something to represent the Spine getting a majority of the OpFor's attention later. For now, have...
Under the Hammer
Post Campaign Analysis
Slaaneshi Incursion, Avernus. M43.----
Analysis of Week 1, Region Alpha/City Primaris
Opfor: Slaaneshi Deamons
-Designation: Hoard Alpha (Section 1.2.1)
-Leader: Keeper of Secrets, True name irrelivant, Designated Alpha Actual (Section 1.2.2)
Overview
In hindsight, it looks like the OpFor's Hoard Alpha represented the lion's share of what was available during the opening phase of the campaign. While the forces sent against Dis were quite sizable, it came at the direct cost the overall size of what was thrown at the Azure Islands and Lindon (Section 3.1.2). From what we've manage to gather, we at the analysis branch think that Alpha Actual intended to split his forces after overwhelming Dis, with his next targets being Milkwood and Storm's End (S 3.2.8). With his death, the OpFor fell to it's typical infighting, resulting a mass diffusion of force. As an additional boon, this resulted in Avernus being able to greatly increase what it could extract as it's tithe (S 4.2.3, Figure 23c).
Wildlife Participation
As another positive result, Dis did not suffer from significant damage from the wildlife during this time period (S 4.1.1). While it is confirmed that multiple Magma Worms were operating in the immediate vicinity, including at least one of the Giant variety, it seems none felt the need to intrude on the city proper (S 4.1.2). This is attributed to the local forces managing to prevent the OpFor from establishing a major breach, limiting the number of Daemons that were in the city at any one time. It is convinced the Worms (or the Planet Mind) that it was not worth the opportunity cost of pursuit (S 4.4.1). Simply put, they could kill more Deamons out in the open than they could by entering the mountain.
Political Infighting
A significant portion of this analysis team believes that the single greatest result of the Second Battle of Dis is the resulting power struggles that it caused among the upper echelons of the OpFor (S 3.1.1). While the forces of Chaos are prone to such things, this was on a whole different scale. An ordinary human (although many object to calling the Governor "Ordinary') gave a Keeper of Secrets, a Greater Deamon of Slaanesh, a True Death with trivial ease. This sent a political shockwave that reverberated throughout the entire invasion force, setting off an appropriately insane series of power struggles and political maneuvers, more in line with what is expected from the forces of Tzeentch than the Prince of Pleasure. Further analysis of this will take much longer, and likely be an even greater undertaking that the entirety of this full analysis. For a brief overview, see Section 4.1.1.
This resulted in a certain sluggishness in the forces arrayed against Lindon and the Azure Isles. It has been determined that the Leaders of Hoard Beta and Gamma were significant political enemies of Alpha Actual, and took the opportunity to expand their power base via impressing the deceased's forces (S 4.1.3). This came at the cost of direct focus on the actual campaign itself, resulting in reduced effectiveness of the OpFor in these theatres. Local forces used the opportunity to establish defensive lines and to take more effective counter measures, resulting in decreased losses.