The Jericho Crusade
Mark 7 "Aquila Armour"
Mark VII “Aquila Armour”
Mark VII armour, also known as the “Aquila,” “Imperator” or “Eagle” armour, was developed during the Horus Heresy, and remains in use as the most common form of power armour ten thousand years later. It represents the final major development of Mark 6 armour.
While the final battle for Mars was underway, the Imperium realised the planet would eventually be lost. Armour development teams were transferred to Earth to continue, incorporating their latest work into the armour type that would become Mark 7. As Mars fell to Horus, the new armour began reaching the Space Marines on Terra and Luna.
Mark 7’s main improvement is the newly designed chest plastron which covers the chest and arm cabling. The chest bears the Imperial Eagle, giving the armour its common name of Armorum Imperator, or Eagle Armour. This mark abandons the studded shoulder armour plate, and replaces the helmet. As Mark 7 is a development of Mark 6, both have a great deal in common, and parts from one mark are readily interchangeable with parts from the other, like the helmet.