19.32%
Anti-Gravity
Ground Zero: Find and eliminate the Strogg's great weapon, the Gravity Well
20.45%
Destroy the Moon Base
The Reckoning: Infiltrate the Strogg Moon Base, and destroy the fleet
21.59%
Shut Down the Core
Quake II 64: Enter an alternate timeline, and destroy the Guardians
22.73%
Disc Collector
Call of the Machine: Collect all six Data Discs, and defeat the Strogg Creator
44.32%
Destroy Black Hole Generator
Quake II: Close main hangar bay door and destroy the Black Hole Generator
45.45%
Assassinate the Makron
Neutralize Strogg leader's communication system
46.59%
Destroy Strogg Main Reactor
Quake II: Infiltrate and destroy Strogg main reactor
46.59%
Destroy the Big Gun
Quake II: Find and destroy the Strogg's planetary defense system, the Big Gun
50.00%
Shut Down Processing Plant
Shut down all machines in the Strogg processing plant
53.41%
Navigate the Mines
Quake II: Navigate the mines to find a service entrance to the factory
57.95%
Destroy Security Grid
Quake II: Enter the security pyramid and destroy the security grid protecting the industrial region
70.45%
Destroy Strogg Logistical Train
Destroy the Strogg logistical train and restore power to key warehouse components