The Covenant is much older, but a bit like DAO in it's focus on the study of Abnormal beings. The problem is, unlike the current administration of the DAO, the Covenant believes that the world would be better without the cryptid races that have evolved alongside humanity.
They also have a 0.01% attrition rate. In the past 300 years, they have lost exactly 4 people. This is unforgivable. They strive for 0%. This means you do not quit, so much as cease to live.
Of those four people, two are directly related to Amy. The other two married into her family. This is worse than unforgivable.