Quake II

Anti-Gravity

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

Destroy the Moon Base

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

Shut Down the Core

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

Disc Collector

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

Assassinate the Makron

Quake II: Neutralize Strogg leader's communication system

Destroy Black Hole Generator

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

Destroy Strogg Main Reactor

Quake II: Infiltrate and destroy Strogg main reactor

Destroy the Big Gun

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

Shut Down Processing Plant

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

Navigate the Mines

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

Destroy Security Grid

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

Destroy Strogg Logistical Train

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

Establish Communications

Quake II: Establish a communication link to the command ship