Prior to launch, Bungie was very cryptic about how we would access Cryo Archive, Marathon's upcoming, challenging fourth map that will be a lucrative but high-stakes zone. We know that it's set aboard the actual Marathon ship, which floats abandoned above the planet of Tau Ceti IV, and that it holds some big secrets as to what happened to the colony on board - and the UESC's real game plan. We also know it'll provide a tough survival experience where you'll need extremely good gear. However, Cryo Archive was merely given a rough 'mid March' window in Bungie's Marathon roadmap, and it's up to the community to unlock it. Well, we've just got one big step closer, as the first stage of an ARG has been completed, and it also provides some more glimpses of this intimidating map.