Raven Rock is No More Room in Hell 2’s sixth Objective map, added with Armageddon 1.0. It begins outside a military installation in mountainous southern Pennsylvania and sends Responders underground to investigate emergency-operations personnel. The developers describe a different flow from earlier locations and deliberately kept its surprises private before release. This guide therefore gives a current, spoiler-light operating plan instead of inventing a fixed room-by-room walkthrough.
Know the verified map identity
The public official pages do not provide a complete ordered objective list, static codes, exact carryable coordinates, or a universal safe route. Those details can vary by scenario or build and require current in-game evidence. Any guide that presents them without a tested Armageddon version should be treated cautiously.
Prepare for the descent
Use the outside approach to establish roles before the bunker compresses the group. Confirm who has treatment, who carries a controllable firearm, who can hold a corridor with melee, and which player has inventory room for an objective item. If someone is infected, state the symptom and available Phalanx doses before entering a long interior section.
Do not spend all ammunition on the exterior simply because it offers long sightlines. Inside, a reload or blocked door can become more dangerous. Carry a firearm for a rescue lane and a melee option for isolated threats. A suppressor can reduce zombie perception under the post-Revelation firearm system, while a sight can support more accurate follow-up shots; neither attachment makes uncontrolled firing free.
Set a regroup rule: no player crosses a major door, elevator-like transition, stair descent, or newly opened checkpoint until the others answer. The exact bunker structure is intentionally not asserted here, but any environment that takes the team deeper can make returning to a separated Responder slow or impossible.
Read each bunker task safely
At every objective, name the action and the boundary. “Search this marked operations room,” “carry the part to this device,” and “defend this interaction” produce different positions. Divide a search while maintaining sight or a short return path. If the task provides written or terminal information, use what appears in that session instead of a code copied from a clip.
Armageddon applies two global Objective rules that matter here: carryables can spawn farther from their associated objective with more variation, and objective pressure scales with the number of players remaining when it starts. Search beyond the closest shelf, and do not activate a sequence while a teammate is still on the previous floor.
During infinite or scripted pressure, protect the progress condition. Kills are a means to maintain access, not the mission itself. One player operates or carries; the others establish distinct lanes and a fallback. When a lane breaks, announce the retreat before moving so the operator is not abandoned at the device.
Manage an underground team
Use exact calls
Name level, room purpose, marker, and direction of travel. “One level above the current objective” is more useful than “behind you.”
Protect sound cues
Interior walls can hide threats. Keep important effects audible and avoid filling every quiet moment with voice chatter.
Leave inventory space
A rare Supply is valuable only if it does not displace medicine, ammunition, or a carryable needed to survive and finish.
Mark the return
Before splitting, choose the last unmistakable task location as the rally point and state when the team moves it.
Raven Rock is a poor place to discover that two players use incompatible ammunition or that the only cure was left far above. At each completed task, perform a short inventory and infection check. Share by role: the player covering a long lane needs compatible rounds, while the carrier needs health and a clear path more than a second heavy weapon.
Clear Normal and preserve the roster
Practice in Solo for geography and interactions, remembering that Solo has no traditional progression and no permadeath. Then use Beginner to learn with strong UI reminders or Normal for the achievement attempt. Normal respawns after major objective completion, but deaths after extraction is called can still become permanent, and late-run UI may incorrectly promise another respawn.
For While The Rest of Us Die, remain through a successful final extraction on Normal or higher. Do not assume arriving at the final marker is enough. If health, infection, ammunition, or team size collapses earlier, use an available early extraction to preserve a valuable Responder and return with better knowledge. The achievement can wait; the roster cannot be restored by replaying a guide.
Use Solo Mode for rehearsal rules, Objective Mode for mission economics, and Permadeath before risking a developed character underground.