Librarians are the battle-psykers and lore-keepers of the Space Marines, and when clad in Terminator armour lend a lethal psychic edge to their elite infantry spearheads. Whether in gruelling boarding actions, ferocious urban combat, or a stand against overwhelming enemy numbers, these psychic juggernauts carve a path with powerful empyric blasts and unnatural foresight.

The Grey Knights are perhaps the most elite and secretive Chapter of the Adeptus Astartes, forged as the Imperium's greatest weapon against the dangers of the warp. In the Grey Knights’ sequestered fortress on the moon of Titan, psykers and sages sift through omens of coming daemonic incursions – and despatch strike forces of daemon-hunting Space Marines, each gifted with well-honed psychic abilities. Aboard space hulks infested with unnatural entities, or voidcraft corrupted by their passage through the warp, the Grey Knights are an unstoppable force.

Strike Force Agastus makes planetfall. In the company of a Brutalis Dreadnought, squads of heavily armed Desolation Marines rain down volleys of explosive ordnance across the battlefield, guided by a skilled Primaris Lieutenant as they pulverise even the toughest of foes in the Emperor's name.

Captain of the White Consuls Chapter, Vitrian Messinius is a veteran warrior and one of Guilliman's most trusted advisors. His power fist is an ancient relic of masterful craft and rare potency, gifted to him by the Avenging Son himself for honourable service. Few are as loyal to the Imperial Regent's vision as Messinius – as such, he is responsible for enacting the will of the primarch during the Indomitus Crusade, granted the rank of Lord Lieutenant within the Crusade Fleet and determined to see Guilliman's ambitions through.

The Ultramarines epitomise what it means to be Adeptus Astartes. They are beacons of nobility, honour and discipline in a galaxy riven by darkness and disorder. No Chapter holds the Codex Astartes in such hallowed regard as they, and they have utilised its tenets and strategies to achieve glorious victories over ten thousand years.

The roaring of furious engines, deep rumbles of thundering armoured transports, screaming of heavy jump packs at full burn and ferocious Korchin war cries herald the devastating assault of the White Scars. Formidable hunters drawn from fierce tribesmen, the White Scars smash through their foes like the tip of a spear through the flank of prey.

Castellan Garran Crowe is the Champion of the Order of Purifiers, and his flawless soul radiates outward in a searing psychic aura. He is the keeper of the Black Blade of Antwyr, a daemon sword that whispers promises and threats to corrupt those who wield it – a temptation against which Castellan Crowe proves himself at every waking moment, forgoing the blade's dark powers in favour of his own masterful combat prowess.

The most mysterious of the Emperor’s servants, the Grey Knights are a unique Chapter of Space Marines. Each is an elite warrior-mystic, clad in sigil-scribed power armour and wielding archaic weapons through which they channel their otherworldly abilities.

The Stormraven Gunship is an armoured versatile craft that combines the role of dropship, armoured transport and strike craft.

A linebreaker without peer, the Land Raider Crusader can smash through enemy formations, disgorging Space Marine assault troops into the heart of the enemy position.

Though some Chapters use Repulsor Executioners as armoured escorts for their dedicated troop-carrying tanks, many favour them as transports for Hellblasters and other specialist Primaris squads

Far more advanced than the other Imperial craft which it resembles, the Corvus Blackstar is truly worthy of ferrying a Deathwatch Kill Team to their brutal mission.