Try and say to the turret operator "Burn baby, burn."

"Behold! The Immolator!"

Dawn of War: Soulstorm

The Immolator is the Adepta Sororitas' standard Infantry Fighting Vehicle, and their answer to the Space Marines' Razorback. The main difference is that the Immolator's turret is mounted towards the front of the vehicle, rather than the back.

The Ecclesiarchy actually has a monopoly on this style of assault tank, as a result of the circumstances of its discovery. Its STC pattern was found before the Age of Apostasy, when the Ecclesiarchy was still allowed to have men under arms; said men, the Frateris Templar, discovered an ancient factory on one of the worlds they had reclaimed for the Imperium. They decided to keep it a secret, to use as a bargaining chip later.

They would use that chip shortly after the Age of Apostasy; with the Frateris Templar was disbanded, all of their vehicles went with them, and even though the Ecclesiarchy was able to rules lawyer its way into keeping the Sisters of Battle (being women under arms), they still needed to be armed somehow. The Ecclesiarchy arranged a deal with the Adeptus Mechanicus: they would give the data from the factory over to the tech-priests, in exchange for an exclusivity contract on any equipment produced from it. Deciding that access to ancient data was more important than open license agreements, the Mechanicus agreed, and the result, when the holes were patched with the Rhino STC plans, was a heavy flamer-toting assault tank (though later patterns substituted the heavy flamers for heavy bolters and multi-meltas). This act is a violation of the Treaty of Olympus by both parties. As such, it is both heresy and treason by their own laws. Of course breaking laws like this is pretty standard for the Imperium. Also don't tell the Sisters that they're breaking any laws. It can, and will, result in being purged. Most likely by this very vehicle.

A sad moment of note may have come to pass however, for as of November/December 2015, the Immolator is no longer available from the GW website. As this happened the day after I ordered one, it makes me think that I might have bought the last one ever... Just as planned.

However, there is still hope, as the exorcist kit now includes the equipment to make an immolator - according to a GW staff member who plays sisters (confirmed - I, a simple fa/tg/uy, recently bought an exorcist in lieu of an immolator and was pleasantly surprised to find all the goodies for an immolator included in the kit. The glass canopy is no longer there though, instead its just this plastic ring piece, but it does the job. Not sure why the website doesn't include the fact that the kit doubles as an immolator.)

As of Dec.14, 2016, the immolator is back up on GW's web store. That's right, they're back, motherfuckers! After another absence they officially returned to the GW online store in September 2017 giving you so much firey dakka it'd make an Ork shed a tear.

Forces of the Sisters of Battle
Command: Canoness - Ecclesiarchy Battle Conclave
Ministorum Priest - Sororitas Command Squad
Troops: Avenging Angel - Arco-flagellant - Battle Sister Squad
Celestians - Crusaders - Death Cult Assassin
Dominion Squad - Retributor Squad - Seraphim Squad
- Sisters Repentia
Vehicles: Exorcist - Immolator - Penitent Engine - Repressor - Rhino
Flyers: Avenger Strike Fighter - Drop Pod
Saints: Living Saint - Geminae Superia
Non Militant Orders Dialogous - Orders Famulous - Orders Hospitaler
Vehicles of the Imperium of Man
Walkers Dreadnought - Nemesis Dreadknight - Ironstrider Ballistarius
Onager Dunecrawler - Penitent Engine - Sentinel - Sydonian Dragoon
Transports Chimera - Crassus Armored Assault Transport - Drop Pod - Goliath Truck
Gorgon Armored Assault Transport - Hades Breaching Drill - Immolator
Razorback Transport - Repressor - Rhino Transport - Taurox - Testudo - Pegasus AAV
Trojan Support Vehicle - Triaros Armoured Conveyer - Tunneling Transport Vehicles
Atlas Recovery Tank - Bane Wolf - Bike Squad - Centaur Utility Vehicle - Scylla Light Tank
Cyclops Demolition Vehicle - Devil Dog - Hellhound - Land Crawler - Achilles Ridgerunner
Salamander Reconnaissance Tank - Siegfried - Tauros - Venator - Wolfquad - Pegasus AFV
Caladius Grav-Tank - Krios Battle Tank - Land Raider
Leman Russ Battle Tank - Predator - Ragnarok - Sabre Tank Hunter
Sicaran Battle Tank - Spartan Assault Tank - Vindicator
Ordnance Basilisk Artillery Gun - Colossus Bombard - Deathstrike Missile Launcher
Exorcist - Griffon Heavy Mortar Carrier - Hunter - Hydra Flak Tank
Manticore Launcher Tank - Medusa Siege Gun - Rapier Armoured Carrier
Stalker - Thunderfire Cannon - Whirlwind - Wyvern Suppression Tank
Baneblade - Capitol Imperialis - Cerberus Heavy Tank Destroyer
Fellblade - Leviathan - Macharius Heavy Tank - Macrocarid Explorator
Malcador Heavy Tank - Mastodon - Ordinatus - Typhon Heavy Siege Tank
Skimmers Javelin Attack Speeder - Grav-Rhino - Land Speeder - Pallas Grav-Attack
Flyers Caestus Assault Ram - Corvus Blackstar - Fire Raptor - Nephilim Jetfighter - Sky Talon
Space Marine Landing Craft - Storm Eagle - Stormbird - Stormhawk - Stormraven
Stormtalon - Stormwolf - Thunderhawk - Valkyrie - Vendetta - Vulture
Fighters &
Avenger Strike Fighter - Lightning Fighter - Marauder Bomber
Stormfang - Thunderbolt Fighter - Xiphon Interceptor
Spacecraft Aquila Lander - Arvus Lighter - Boarding Torpedo - Devourer Dropship
Faustus Interceptor - Fury Interceptor - Shark Assault Boat - Starhawk Bomber
Tetrarch Heavy Lander
Titans Imperial Knight - Warhound Scout Titan - Reaver Battle Titan
Warlord Battle Titan - Warbringer Nemesis Titan - Emperor Battle Titan