Marathon’s large-scale December update is rapidly approaching, and it looks to be answering every player complaint thus far.

In a new trailer for the Symbiosis update, launching on Dec. 8, Bungie teased a number of promising-looking changes to the base game, including the new Runner Shell called Bishop, an expansion of the Perimeter map that’s now being overtaken with some sort of organic overgrowth, opening up new playable areas, and more.

Image via Bungie

The main attraction is the new PvE mode, Expedition, which Bungie describes as a “co-op PvE roguelite.” Players must work together to complete objectives and fight against AI enemies without having to deal with enemy players, as Bungie answers the call for the game’s most-requested feature.

Echoing Destiny’s Tower, Marathon will also be getting its own social space, called Limbo. It includes a firing range and a spot for players to gather and hang out with friends.…