Rescue the Ghoul Defector
Steel Meridian has identified a potential ghoul defector. Rescue them from certain death.
Eliminate a Ghoul Alpha
Hunt down a ghoul alpha and weaken their presence on the Plains.
Wipe Out Ghoul Burial Grounds
Launch an assault on Grineer burial grounds and send a message to Vay Hek.
Purge a Massive Ghoul Burial Site
Find and destroy a ghoul burial site before they can wake.
Operation: Ghoul Purge
21 December 2017 – 04 January 2018
Operation: Plague Star
15 November 2017 – 27 November 2017
Operation: Ambulas Reborn
04 May 2017 – 11 May 2017
Operation: Rathuum
29 April 2016 – 09 May 2016
The Cicero Crisis
18 December 2013 – 06 January 2014
The Hunt for Alad V
20 November 2013 – 25 November 2013