Quake II achievements

17.07%

Anti-Gravity

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

18.29%

Destroy the Moon Base

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

19.51%

Shut Down the Core

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

20.73%

Disc Collector

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

43.90%

Destroy Black Hole Generator

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

45.12%

Assassinate the Makron

Neutralize Strogg leader's communication system

46.34%

Destroy Strogg Main Reactor

Quake II: Infiltrate and destroy Strogg main reactor

46.34%

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

53.66%

Navigate the Mines

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

58.54%

Destroy Security Grid

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

70.73%

Destroy Strogg Logistical Train

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