Black Legion - A Legion Reborn: With the induction of the genestock from Cthonia, the XVIth Legion was remade. For the Terran Space Marines who already constituted the core of the Legion, their new brothers brought with them their own customs, attitudes and modes of thought, the ingrained inheritances of a thousand generations of callous violence and the ruthless pursuit of survival that the indoctrination practices of that time could modify and perhaps suppress but not entirely erase. In truth, this was perhaps the point for the Cthonians' inclusion within the Legion.As the Terran Legionaries fell in battle, their voices and the more ordered military traditions they had been trained in became fewer and fainter within the XVIth Legion. The marks of change were many and subtle, not overwriting the Legion's culture entirely but bringing a unique character to what had gone before. Examples of this change came slowly.The topknots and mohawks commonly sported by Cthonian ganger head-hunters became common throughout the ranks of the Luna Wolves as both additions to their armour and as personal decoration. After being wounded in battle by a worthy foe it was common for a Luna Wolf Astartes to honour the valour of his fallen enemy by making a deep scratch in the ceramite across his helm's eye socket. Perhaps most tellingly, the Cthonian word for cutting the throat of an enemy gang-killer in single combat -- aebathan -- became a common term in the ranks to describe the completion of a campaign.The personal charisma and reputation of a commander within the Legion came to apply to the Astartes under his command, as if the ways of the Cthonian gang lords now informed the Luna Wolves' own understanding of leadership. This applied particularly to the Luna Wolves' Primarch Horus Lupercal after his rediscovery by the Emperor, as his cult of personality was universal within the Legion and all Luna Wolves came to revere the Lupercal to an extent that would ultimately prove their undoing.The strength of the Luna Wolves in battle did not change or weaken after the inclusion of the Cthonians; if anything the Legion seemed to become even more potent over time. The Legion strove to maintain the required flexibility needed to allow them to fight any war or enemy they might encounter on their own terms, but where possible the application of sudden and overwhelming force was usually their favoured form of attack, and that of their primarch.As a doctrine this became bound up with the Legion's savage ferocity that was born of Cthonian blood, and wielded with ferocious intelligence and the matchless tactical instinct of Horus. A star system targeted for Imperial Compliance would often fall to the Legion in a single engagement: Luna Wolves warships would cut in from the system's edge, forming a spear formation that would break into many smaller blade tips to strike at the target system's planets, moons and void stations.Orbital bombardment and simultaneous mass orbital drops would break the enemy's strength and will to resist. Tactical threats were systematically identified, isolated, outflanked, encircled and destroyed with merciless precision and close-quarter savagery which spoke of apex pack predators splitting a herd and gutting its members with lightning fury. The Imperial Army troops that followed in the Luna Wolves' wake often had little to do but scrape suddenly Compliant worlds clean of the leavings of battle.