I have no idea what I played as the story didn't make very much sense beyond the Cortana is dying of AIds plotline which mostly only came up when the plot wanted an inconvenience and nothing else until the very end where AIds is suddenly a superpower.

The new enemies look cool and their guns are cool but they're really annoying to fight. Even worse is the Covenant (who are just randoms but the game never clarifies why they are there) sound completely different losing all of their charm from the previous games.

A shame this is the note that the MCC ends on, and the checkpoint system is still bad!