Evacuation Procedures: Building Orbs and Arish
Reach the Evac Building through Central’s southeastern Supply Route. Destroy the front orb, clear the southwest alley’s healing enemies and relay power up to the rooftop box to access the garage orb. Clear the northern shielded encounter and its rooftop orb before using the building entrance.
Quick answer
Reach the Evac Building through Central’s southeastern Supply Route. Destroy the front orb, clear the southwest alley’s healing enemies and relay power up to the rooftop box to access the garage orb. Clear the northern shielded encounter and its rooftop orb before using the building entrance.
On this page
Remove the outside barrier
Reach the Evac Building through Central’s southeastern Supply Route. Destroy the front orb, clear the southwest alley’s healing enemies and relay power up to the rooftop box to access the garage orb. Clear the northern shielded encounter and its rooftop orb before using the building entrance.
Clear the 12th floor
Use the elevator to floor 12 and defeat the Hiss through the blue corridor. The scaffold-side health crate is optional. Destroy the required orb and continue. If the barrier persists after the encounter, the historical official workaround is to reload the last checkpoint; check your installed update first.
Find Arish and Level 2 clearance
Take the elevator to floor 15, follow the red-room memory, then return through the elevator route. Remove the next orb, find Arish and collect the Level 2 keycard. A dialogue meeting without the required card leaves the following clearance check unresolved.
Return to street level
Use Level 2 access, clear the next encounter and orb, then follow the yellow corridor to the ground-floor elevator. The lobby SHÜM access is optional and has its own zone requirement. Leave the lobby and return to the Field Office for Arish’s Briefing, which opens Power Lines and Into the Sinkhole.
Location reference
Save your route progress
Saved in this browser; these checks do not read your game save.
Sources and scope
Detailed source walkthrough. Compared with the quest, progression and version sources linked in the related guides. Reviewed November 3–4, 2026. This is a source-based route; a site-run playthrough is not claimed.