Reclaimer as added a few new options in the latest update. You can now playthrough the campaign in first or third person, regardless of what was previously forced.
Bonus: Skulls are now also in Reclaimer
(Don't you dare turn sprint on)
There is a now Marine campaign where you fight alongside the chief where you can finally be the helpful marine you always wished you had
One of the best weeks in Halo content in years