Quake II

Quake II: Neutralize Strogg leader's communication system

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Quake II: Establish a communication link to the command ship

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Quake II: Destroy the Strogg logistical train and restore power to key warehouse components

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Quake II: Enter the security pyramid and destroy the security grid protecting the industrial region

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Quake II: Navigate the mines to find a service entrance to the factory

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Quake II: Shut down all machines in the Strogg processing plant

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Quake II: Infiltrate and destroy Strogg main reactor

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Quake II: Find and destroy the Strogg's planetary defense system, the Big Gun

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Quake II: Close main hangar bay door and destroy the Black Hole Generator

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Call of the Machine: Collect all six Data Discs, and defeat the Strogg Creator

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Quake II 64: Enter an alternate timeline, and destroy the Guardians

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Ground Zero: Find and eliminate the Strogg's great weapon, the Gravity Well

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The Reckoning: Infiltrate the Strogg Moon Base, and destroy the fleet

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