The campaign, which released yesterday, is set on a large slice of a Halo ring. Dotted around the ring are armour lockers that, once found, unlock cosmetics for use in the multiplayer.
However, if you are offline or disconnected from the Halo servers, these cosmetics will not show up in your multiplayer inventory. Unfortunately, Quick Resume has a habit of failing to connect, leaving you playing offline. And so, Halo community director Brian Jarrard tweeted to warn players against using the feature.
