In blackened heavens they hide!
—A Colossus clearing the skies from enemy aircraft
The Colossus is a heavy tank used by Epsilon Headquarters. One of the few dual-role units ever seen in the war, it is armed with both plasma blasters to deal with ground targets and heavy anti-air guns to engage air targets, especially slower ones.
The Colossus is certainly one of the larger Epsilon ground units, towering over most tanks. Surprisingly mobile and well armored, it can easily take on multiple foes with its plasma cannons. Thanks to a streak of Headquarters ingenuity, the Colossus not only functions well as a heavy assault vehicle, but as an excellent anti-air defense as well.
Deploying into a stationary anti-air gun, it can rapidly take down aircraft. Slower or stationary aircraft are espescially susceptible to the plasma rounds fired by the Colossus, taking even more damage the closer they are in proximity to the Colossus. This makes this leviathan of a tank a versatile weapon in order for Headquarters to combat the Allied and Soviets head-on.
The Colossus is arguably one of the best monster tanks available when it comes to dealing with heavily armored vehicles or buildings. Coupled with the fact that it can attack aircraft once it is ordered to deploy, the Colossus is a force to be reckoned with.
Their Plasma Blasters also deal area-of-effect damage, making them very suited to dealing with massed tank rushes. The Heavy AA Guns these tanks carry are superior to Gatling Cannons in every aspect when it comes to dealing with air threats (minus the additional damage bonus the longer it is engaged in combat), meaning they can effectively supplement them in order to relieve some demands from the HQ proselyte's power grid.
But not all is so bright with the Colossus, as its weapons are below average when it comes to dealing with infantry, and as such groups of anti tank infantry (Tesla Troopers, Desolators, etc.) are a threat to the Colossus if it's not guarded with the appropriate anti-personnel units. Despite its formidable anti-aircraft firepower, it cannot chase aircraft if deployed. It is also helpless against ground attacks when it is utilizing its AA weapons, so HQ proselytes must be required to micromanage them in order to effectively use these behemoths to their full potential.
- The first Colossus prototype appears in Lizard Brain. It, along with four other vehicle prototypes, must be escorted to safety from an attack of the European Alliance. The Colossus prototype has no weapon and cannot be deployed.
- The Colossus is first controllable in the Covert Ops mission Blood Rage.
- The Colossus becomes buildable in the Covert Ops mission Nightcrawler, their blueprint will be transferred to the player after contacting with the outpost with some Colossi.