3rd Armoured Corps

Key unit types

 * Heavy armoured regiments
 * Macharius Battalion: four companies of four Macharius Heavy Battle Tanks
 * 2x Leman Russ Company: 14 Leman Russes each
 * 2x Heavy mech infantry company: ~100 heavy infantry in three Crassus Armoured Assault Transports
 * HQ Company: Macharius chassis command tank, AA cover
 * Support battalion
 * Standard armoured regiments - Ludd Leman Russ Battle Tanks with occasional variants and medium infantry in Chimeras
 * Battle Tank Battalion: four companies of 14 Leman Russes each; one outrider company and one anti-armour specialist company
 * Medium mech infantry battalion: 4x company with ~150 troops in 14 Chimeras
 * HQ company: Leman Russ command tank, AA cover
 * Support battalion
 * Light armoured regiments - Salamander scout tanks, fast Leman Russes (Conquerors and Exterminators) with light infantry in Centaurs and Tauros Venators
 * Mobile Artillery regiments - each using some combination of Basilisks, Colossus Siege bombards, Dominus Armoured Siege Bombards, Manticores, Deathstrikes, and/or Praetor Armoured Assault Launchers, plus AA support, logistics, HQ, and some defensive infantry.
 * Engineering regiments - engineering vehicles based on Centaur, Chimera, Leman Russ, Macharius, and Baneblade chassis. Includes specialised demolitions/EOD units (lots of Cyclops demo vehicles), sappers, and rail network detachments capable of laying track faster than a Baneblade's cruising speed and running supply/engineering/fire support rail vehicles. One regiment of weird hyper-specialised experimental support tanks.
 * Independent Super Heavy battalions
 * Typically, three companies each with a Baneblade chassis tank, supporting infantry (riding inside the tank or in Crassus transports), support vehicles, and Sentinels; plus a small company of appropriate Leman Russ and/or Macharius tanks.
 * Close support battalions: 1x stormlord, 1x stormsword or banehammer, 1x hellhammer
 * Flexible battalion: 3x Baneblade
 * Titankill battalion: 3x shadowsword
 * Independent anti-armour battalions
 * Dedicated tank-hunters with some mix of Destroyers, SPGs, lascannon scout sentinels, LR Demolishers and Annihilators, and a limited number of more exotic vehicles

Units of Note
10th Ballistic Artillery Regiment: Known by their motto, "Big Guns On The Way", the 10th are a "mongrel regiment" of veterans of a variety of different Kronus campaigns. They deploy 48 Basilisk self-propelled howitzers and are typically deployed as a unit, serving as auxiliaries to divisions requiring fast-moving artillery support. They distinguished themselves in the early days of the assault on Dalarus during the Kronus Campaign, where they provided close-range direct fire support for a Stormtrooper brigade, preventing their being overwhelmed by Ork Speed Freaks.81st Assault Launcher Regiment: Three rocket artillery battalions, each equipped with two batteries of four Praetor Armoured Assault Launchers each (24 launchers total in regiment) and two batteries of support, plus a HQ battalion that coordinates recon, target designation, and resupply. The heavy and flexible Praetors are deployed to smash key defences at long range, saturate incoming enemy movements, and provide high-impact mobile air defence screens. The regimental support units include Hydras to afford the valuable and slow-moving Praetor launchers additional protection from airstrikes, and Salamander scout tanks to serve as outriders when on the move and forward observers when the launchers are in firing position.