30K Tactical Marines.

"Of the Tactical Space Marine, bedrock of his Chapter and paragon to his brothers, I shall tell thee. He shall be steeped in the lore of battle and schooled in all manner of weapon and strategy. With combat blade, boltgun and grenade he shall assail the foe. But these are mere tools: a Tactical Marine's true weapons are his courage, his wits, and his dedication to his brothers. He will bring his foe to battle in a manner and time of his choosing, never himself caught unready or ill-prepared for the task at hand. In defence he shall be stalwart as the mountain, a bulwark stood firm against the enemies of Man. In attack he shall strike with the wrath of the Immortal Emperor, felling the foe without mercy, remorse, or fear."

The Wolf Guard are the greatest warriors of the Space Wolves Great Companies. It is their duty to lead packs into battle or provide a body guard to important members of the chapter on the battlefield, especially as the Wolf Lord. They are also often the leaders of squads, imparting their knowledge and experience on their younger charges.

Born soldiers, the Shock Troops of Cadia are trained for military service from the moment they can hold a rifle. Long years of rigorous firing drills have forged them into expert sharpshooters, skilled in both dogged defence and storming assault. Cadian Shock Troops are held by many as the ideal Imperial soldiers – with countless regiments mustered in their image.

The Fire Dragons are one of the forms of Eldar Aspect Warriors, who represent a different aspect of the Eldar war god Kaela Mensha Khaine. Embodying the writhing, sinewy dragon of Eldar myth as well as the wanton elemental destruction of Khaine, Fire Dragons are aggressive and warlike close combat fighters who utilized heat weapons to destroy enemy vehicles and strongpoints.

When Fire Dragons are sent as a Kill Team, it is often when the enemy fleeing will not suffice, and thus complete anhilation is required. Equipped with Fusion Weapons, able to turn armor into mere slag, a Kill Team of Fire Dragons is a force to be reckoned with. When they are sent to battle, it is because the scene will be dire - not for the Aeldari, but for their foes.

The reckless troublemakers from the Blood Claw packs - equivalent to Scout Squads in other Chapters - are reassigned to the Skyclaw Assault Packs. This title is a "reward" for their stubbornness and naïvete, and are given jump packs to aid their eagerness to charge straight into the line of battle. The experienced elders look down on the Skyclaws as dishonourable. This disapproval among the experienced Space Wolves only drives the Skyclaws to perform risky acts of valour and heroism. While many will surely perish in attempting to achieve such a feat to be worthy in the elders' eyes, some will inevitably succeed in accomplishing the impossible.

Wulfen exist on the brink of constant berserk rages, and their chilling howls unleash the inner beast in sons of Russ nearby. Wulfen are bestial warriors, altered by the Curse lying in the blood of all scions of the Wolf King. They are hunters, bounding forward with fangs bared and claws outstretched, ripping foes apart with inhuman speed.

The fearsome Catachan Jungle Fighter regiments include squads of warriors exceptional even by the exacting standards of their birth world. They are seasoned Jungle Fighters who are deadly in close combat, also making use of a versatile array of ranged weapons for every occasion. In Catachan regiments these elite soldiers are called "Catachan Devils", in reference to their famous kill-knives and the voracious predators of their world whose fierceness they emulate in combat.

The Devils' senses are honed to a razor's edge, allowing them to recognise hidden threats in their midst, even enemies who are under cloaking devices. Their particular mission is usually to conduct long-range penetration raids deep behind enemy lines, responsible for bearing the brunt of the enemy's response when battle is finally joined. In other instances Devils are used as expert scouts and specialists, when deployed in this manner they range ahead of the Catachans' main force, engaging enemy ambushers, launching surprise attacks, setting traps and herding enemy forces into the most dangerous of terrain.

Even a regular Catachan is genetically superior on a level that normal humans simply cannot match, making the Devils' reputation even more impressive.