All Challenges

Fight for the Lost

Challenge Type Difficulty Map Enemy Characters and weapons
Week 3.3 Thymos
 Trio Gold, Platinum Hydra
 Collectors
Week 5.1 Scrapyard Adventures
 Solo Gold, Platinum Vancouver
 Geth
Bonus 2 Embrace Eternity!
 Duo Gold, Platinum Hydra
 Cerberus
Bonus 3 Aigis
 Trio Gold, Platinum Vancouver
 Reapers
Week 7.3 Kleptomania
 Trio Gold, Platinum White
 Cerberus
Week 8.2 Shrouds of Doom
 Duo Gold, Platinum Dagger (Hazard)
 Reapers
Week 9.2 Ghost in the Machine
 Duo Gold, Platinum Giant (Hazard)
 Geth
Week 11.3 Navarchos
 Trio Gold, Platinum Goddess
 Cerberus
Week 12.1 Vulgar Display Of Power
 Solo Gold, Platinum Ghost
 Cerberus

Elysium Olympics

Challenge Type Difficulty Map Enemy Characters and weapons
Duo Challenge Biotic Strength
 Duo Gold, Platinum White (Hazard)
 Reapers

Themed Duo Challenges 2

Challenge Type Difficulty Map Enemy Characters and weapons
Set 4, II Bitter Sweet
 Duo Silver, Gold, Platinum London
 Reapers

Operation Alliance Troopers

Challenge Type Difficulty Map Enemy Characters and weapons
Mission 5 Boom Stick
 Solo Silver, Gold, Platinum Giant (Hazard)
 Reapers
Mission 11 Hybrid Synergy
 Solo Silver, Gold, Platinum Condor
 Collectors

Tales from the Trenches

Challenge Type Difficulty Map Enemy Characters and weapons
Week 3.2 Exchange Program
 Duo Gold, Platinum Goddess
 Collectors

For Tuchanka

Challenge Type Difficulty Map Enemy Characters and weapons
Trio Challenge I The Rite of Passage
 Trio Gold, Platinum Giant (Hazard)
 Collectors

Weekly Themed Solos 1

Challenge Type Difficulty Map Enemy Characters and weapons
Week 8 The Shepard Clone's War Part 2 - CAT6 (Casual-Hardcore-Epic)
 Solo Silver, Gold, Platinum Ghost (Hazard)
 Cerberus

N7 Triune Trials

Challenge Type Difficulty Map Enemy Characters and weapons
N3.5 The Shepard Clone's War Part 2 - CAT6 (Trio)
 Trio Gold, Platinum Ghost (Hazard)
 Cerberus