The Iron Hawks is a Loyalist Space Marine Chapter from an unknown Founding and a successor of the Ultramarines. The Iron Hawks are blessed with pure and complete gene-seed, though they're currently recovering from heavy losses after a particularly long and gruelling campaign. Despite being strict adherents to the Codex Astartes, they've garnered a reputation for the brutal effectiveness of their high-speed assaults aboard Thunderhawk gunships. The Iron Hawks revere their Primarch Roboute Guilliman above all others -- save the Emperor -- and they loathe those who have turned their backs on the Imperium. The Iron Hawks' Chapter planet is called Stormfall and it is located in the portion of the Ultima Segmentum on the far side of the Great Rift in the Imperium Nihilus close to the Somnium Stars Warp storm.