Operation: Oxium Espionage
29 January 2014 – 05 February 2014
Ties That Bind
Ties That Bind was a special alert that was available during February 2014.
A Favour for Darvo
A Favour for Darvo was a special alert that was available at the end of November 2013.
Operation: Hostile Mergers
22 May 2019 – 03 June 2019
Operation: Buried Debts
07 March 2019 – 25 March 2019
The Pyrus Project
30 August 2018 – 13 September 2018
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.