30 new Achievements for Halo Mythic (whatever that is) have gone live for Xbox 360 players.
As you peruse the list, you'll find rewards for finding skulls in six different areas: Assembly, Citadel, Heretic, Longshore, Orbital and Sandbox. We're thinking new levels, but the presence of skulls has us wondering if they're single- or multiplayer. Speculate away! (Oh, and if you'd like some actual, true information about today's title update, Bungie's got it for you here.)