Originally introduced in the first Halo game as the primary antagonists, the Covenant has appeared in every subsequent installment since to a lesser or greater degree. They fit the evil alien stereotype to a T, but they made combat fun in the original Halo, and as the series progressed their background lore would be expanded upon to the point where you start to actually sympathize with them in a few situations.
RELATED: Halo: Things About The Covenant That Don't Make Sense
They’re a fascinating
Read more on thegamer.com