I think I will actually miss the Covenant.
Even though the Covenant divided into two factions, the Covenant Loyalists were still good enough for me. I hope the Brutes will return at some point and the Arbiter!
[Edited on 10.14.2012 5:31 AM PDT]
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That's the Storm Faction though. Personally, I feel like they aren't the Covenant. Just some rogue remnants. Which they kind of are.