All Challenges

Project Blackwatch

Challenge Type Difficulty Map Enemy Characters and weapons
Trio Mission 3 Anti-gravity
 Trio Gold, Platinum Vancouver
 Cerberus
Team Mission 1 Special-Op Reinforcements
 Team Gold, Platinum Condor
 Reapers

N7 Triune Trials

Challenge Type Difficulty Map Enemy Characters and weapons
N5.1 Bray-Fist (Trio)
 Trio Gold, Platinum Ghost
 Geth
N5.2 Kill Them! (Trio)
 Trio Gold, Platinum Reactor (Hazard)
 Cerberus
N5.3 Retake Omega Chronicles, Part 3 - The Intangible Is Unstoppable (Trio)
 Trio Gold, Platinum Goddess
 Cerberus

Operation Supernova

Challenge Type Difficulty Map Enemy Characters and weapons
Trio VIII Desperate Measures
 Trio Gold, Platinum London
 Collectors

N7 Challenge Series

Challenge Type Difficulty Map Enemy Characters and weapons
N5.3 Retake Omega Chronicles, Part 3 - The Intangible is Unstoppable
 Solo Silver, Gold, Platinum Goddess
 Cerberus

Themed Duo Challenges 2

Challenge Type Difficulty Map Enemy Characters and weapons
Set 6, II Shadow of A Kabalim
 Duo Silver, Gold, Platinum Condor
 Reapers

Tales from the Trenches

Challenge Type Difficulty Map Enemy Characters and weapons
Week 9.2 Snap Inspection, part 2
 Duo Gold, Platinum Giant
 Collectors