Marathon's new endgame map has finally been unlocked, but it's only open on weekends

After weeks of trial, error, and a ton of in-game mileage, Marathon's super sleuths have finally cracked the ARG puzzle for Cryo Archives, unlocking the FPS game's first endgame map. From the launch trailer subsequently shared by Bungie, Cryo Archives looks to blend tightly-crafted corridors with plenty of verticality and open sections, so I'm already expecting absolute chaos. Before you'll even be allowed to step foot inside the Cryo Archives when it arrives later today, however, you'll have to pass the barrier for entry.