As the topic states, have they said why they decided some skulls are not be activated? Pre order ones I do understand, but the original you had envy, and whatever one blew enemies up with a headshot. They are not active in the laso playlist which is somewhat frustrating because it changes it drastically. Granted even with them on in the original it was a never ending pain, but still.
Halo 2’s Gravemind is literally impossible in this playlist. No, I’m serious, it is unbeatable. It’s crazy that Envy isn’t in there, maybe it would at least be possible. I hope they fix these things.