MMGN writes: Halo 5: Guardians is now out in the wild and that means it's time to start searching for the game's illustrious Skulls.
These are hidden throughout the campaign and when found and then activated in a mission, act as modifiers. For example, the "Iron" Skull makes it so you cannot be revived and you can't revive squadmates.
Some Skulls are easy to find while other require some slick platforming skills. So far we've found a handful of them but there are many more to find, so we'll update this as we find them. We've also finished the campaign and have a walkthrough, with the final chapters for that being added in the next few days.