The Leviathan is the Brotherhood of Nod Support Class's Tier 3 heavy capital warship.
A massive battlestation, the Leviathan is a self-sufficent space-borne vessel, complete with a bridge, helmsman, navigation and other essential facilities.
The Leviathan is too large to be constructed inside the Support Crawler and is called from its cruising altitude high up in the atmosphere down to combat altitudes when it is needed.
As one of the most powerful warships on the battlefield, the Leviathan is the last unit unlocked for a Nod Support Class commander, becoming available at Level 20.
The Leviathan is armed with 3 very long-range fireball launchers, similar to those used by the Nod Offense Crawler. The fireballs deal large amounts blast and flame damage upon hitting their targets. The fireballs are most effective against large clusters of light vehicles/infantry and structures. Only 2 of the turrets may be brought to bear on a single target at any one time.
The Hangar Bay upgrade equips the Leviathan with a Hangar Bay, allowing it to operate Sortie Drones. These are fast-flying, agile pilotless drones that are armed with rapid-fire guns. They are effective against infantry and light vehicles and great for distracting other enemy units. They will automatically attack nearby enemy units or can be sent to attack the same target that the Leviathan is attacking. When the Leviathan is directed to attack a specific target, the drones will fly across the entire map to attack it, potentially killing the target before the Leviathan even arrives. The Leviathan cannot attack air units with the either the fireballs or sortie drones.
The Leviathan also passively improves the fortitude of friendly units around it, increasing their armour.
As befitting a heavy capital warship, the Leviathan is one of the most heavily armoured units in the entire Brotherhood of Nod's arsenal. It's armour can only be pierced by laser attacks and will shrug off bullets and rockets easily. However, since the Leviathan cannot attack air units, it should always be escorted unless it is absolutely certain that there is no opposing Support commander. However, when a plane is VERY close to the Leviathan, single, low rate of fire Gun shots will be fired, giving the Leviathan a very small anti-air defense.
- According to the Worldbuilder, the Leviathan was originally called Mobile Command Facility.