The impossible - lightning slowed. The great arc of immanent violence rising within ZRK-333 bent away from the copper laid out for it. In the space between steel and spark stands humanity, the soul and the heart that brings the realms into harmony. As November-Black drops in besides you and Skitarii forces reach the exits you can feel the glory and synchronicity of the Machine God all around you, the Priesthood functioning as a single unit - and you, standing astride the arena's gallery, an Archmagos again.

"Look! More traitors!" yells a guardsman and opens fire.

[i]Motherfuckers[/i].

Tactical analysis: 
- Imperial Guard Platoon of the Paradisio Aquatic Intervention Force; 60 veterans, officers, various specialists. No heavy weapons but an abundance of plasma and melta. They are opening fire on the Skitarii, spreading out and taking cover. Can't blame them too much, their unit waged a counterinsurgency against Genestealer cultists.
- Rogue Trader emissaries, various nobility, attendants and weirdoes; 180 souls, 120 serious combatants. Wide variety of equipment and ability, including powered armour, exotics, and some grenades you really hope nobody throws indoors.
- One (1) Astartes martial specialist, accompanied by five chapter serfs who are veterans in their own right. Combat demonstration and armour craftsmanship indicates it is a veteran or elite of some kind. Likely able to fight the entire Ranger Corps in close quarters single-handed unless they get very lucky or bring up heavy weapons.
- One (1) Sister of Battle. Possibly God's chosen emissary.
- Skitarii Ranger Teams: 30 immediately available, more on the way. No heavy weapons on hand, some arc rifles. Disciplined enough not to immediately return fire without orders but they are requesting those orders very intensely. They are not specialized for peacekeeping work or holding ground and will fold to a dedicated push.
- Skitarii Vanguard Response Team: 30 within two minutes response, armed but unactivated. Typically it is not considered a good idea to send the radioactive assault troops into riot control.

Assessment: Balance of power lies with Imperial forces, decisively so if the Astartes joins the fray as it seems likely to.