Operation Alien Overlord is the Invasion of Stroggos carried out by Earth in retaliation for the Strogg's attack on the human homeworld. Alien Overlord details several objectives, which when completed, will see the decimation of the Strogg's defensive and offensive capabilities. Alien Overlord also details key elements about the Strogg society to give marines an idea about the enemy they are fighting.

Operation Alien OverlordEdit

The core of the Stroggos civilisation is the capital city of Cerberon. The highly defended complex is built into the base of an enormous crater named Crater Majoris. Between the northern plains and southern sea of Stroggos, Cerberon contains the major defence, communication, and political controls for the Strogg civilisation. At the southern tip of Majoris is a second crater called Crater Minor. Crater Minor contains the defence base complex for the city of Cerberon.


The Strogg civilisation is governed through a system of Warlords. Each is given strategic locations to command and control. A single leader, called the Makron, is chosen from the Warlords. He commands Stroggos from within the palace city located at the northern end of Cerberon. Losing him would leave the Strogg confused and in turmoil as the Warlords battle internally to determine a successor. This would remove any chance Stroggos has for creating a well-organised strike or defensive position.

—Political Structure

Guarding Stroggos is a defence system we refer to as the Big Gun. This defence system detects and destroys any ships over a few meters in length. Also, to protect against ground assaults, a deadly laser security grid surrounds the entire capital city.

—Defence Systems

Bluish crystals called Steedium are the source for most of the energy that powers Stroggos. The energy gained from processing these crystals provides them with the power to run their entire civilisation as well as their planetary defence weapons systems (a.k.a the Big Gun).

—Energy Resources

Military ObjectivesEdit

Your primary objectives are to establish a communications uplink, destroy the planetary defence systems, disable the interplanetary gateway, and assassinate the Makron commander. Once the communication link is made, subsequent communications will guide troops to their primary targets, destroy targets of opportunity, and provide necessary ground support for the follow-up air strikes.

Your first objective is to establish an uplink between command and the Strogg communication computers.These are in the exterior military base south of the main capital of Cerberon. This will enable continued communications, location information, and combat analysis beyond the base complex. Failiure to establish this uplink is not an option. Once on the planet, the combat situation may change quickly. It is imperative that you regularly check your computer system for updated orders.

—Communications Uplink

From the base make your way past the security systems and move north to destroy the Big Gun located on the southern outskirts of the city. Further intel will provide information to achieve this objective.

—Destroy the Big Gun

Disable the interplanetary gateway between Earth and Stroggos. Shutting down the gateway will prohibit the Strogg from launching further attacks against Earth. It may be a long sleep back.

—Disable the Gateway

Finally, locate the Strogg commander somewhere within the capital palace. Assassinating the Makron will assure complete and total disarray within the enemy's ranks and hamper any well-organised strike or defensive position.

—Assassinate the Makron

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