Cerberus is the codename for a black ops organisation that was formerly part of the Alliance military but has now gone rogue. Cerberus has conducted horrific experiments intended to create a super soldier, including experiments on Rachni and Thorian Creepers. They have several research sites, with three on Binthu. Cerberus personnel include commandos, research technicians and mercenaries, some of whom are biotics.
Scientists working for Cerberus captured a marine from Akuze, Corporal Toombs, and conducted terrible experiments on him using thresher maw acid. Cerberus was also responsible for unleashing the Rachni on Listening Posts Alpha and Theta when their experimental subjects - shipped from Noveria - escaped from a freighter.
Things came to a head when Commander Shepard, investigating the disappearance of a group of marines under Admiral Kahoku, found that Cerberus had lured them to a thresher maw nest using a distress beacon. After being informed of their death, Kahoku bought information from the Shadow Broker and sent Shepard to track Cerberus down. Shepard's team went to Binthu to take out Cerberus' research bases, but not before Cerberus had had Kahoku killed. They then headed to Nepheron to launch an assault on Cerberus' main base.
Assignments involving Cerberus include: