Hierarchy

 The Hierarchy is an intergalactic alien empire whose mining force serves as the initial alien invaders in the first installment of the Universe at War series.

History
The original Hierarchy race was saved by the Masari from inevitable extinction over ten millenia ago when they were given the technology needed to survive. However, the Hierarchy ancestors showed zero kindness for their saviors and turned against the Masari, wiping out all but one city ship. The Hierarchy, then, went on to become the dominating force in the galaxy, invading countless other planets in the universe and exterminating the inhabiting races, such as the creators of Novus and the Skinwalkers.

At the beginning of Earth Assault, the Hierarchy invades Earth with the intent to strip-mine the entire planet of valuable resources, including organic life. Initially, the Hierarchy crushes the human resistance, but the underseer of the mining fleet (Kamal Re'x) delays standard procedure of "Purifying" the planet in order to set a trap for Novus, who follow the Hierarchy fleets to cause as much mayhem as possible to their harvesting operations.

As predicted, Novus soon arrived and began to cause trouble around the globe. Eventually, Novus managed to force their way into a Hierarchy Material Uplink teleportation system and teleport their field commander, Mirabel to one of their command ships. However, it is soon revealed that Kamal Re'x had allowed this and had arranged for the ship to self-destruct with the intent of taking Mirabel out with it.

Meanwhile on the planet's surface, Kamal had sent a massive invasion force to the Middle East to assault the global headquarters of Novus, but unfortuneately Mirabel managed to escape the demise planned for her and alerted the Founder of the impending assault. Despite an overwelming force of 2 Assembly Walkers, 2 Habitat Walkers, 3 Science Walker's fitted with Radiation Cascade generators, and an army of Grunts and Defilers Novus managed to defend their base. As the last Walker collapsed, it launched a plasma blast which managed to destabalize the Novus Home Portal, causing the Founder to sacrifice himself to save the planets on both ends.

After this costly victory, Kamal Re'x personally examined the graveyard of machines while plotting the final demise of the Hierarchy's greatest foe. He then tasked his commander to prepare for the Purification of the planet.

Hierarchy Units

 * Grunt
 * Lost One
 * Gluph Carver
 * Monolith
 * Saucer
 * Reaper Drone
 * Phase Tank
 * Detection Drone
 * Habitat Walker
 * Assembly Walker
 * Science Walker