Main Quest · Descent
Reunion
Descent’s main quest opens a secret Tidal Generator room, reroutes power from the underwater area, and chains Oz’s challenge rounds with movement and code puzzles. It concludes inside a memory of Outbreak.
Quick facts & reference
Preparation
Before you startedit Before you start
Prerequisites
- • Exo Suit from the Galleria
- • A Goliath suit drop to reach the underwater switch
Walkthrough
Step by step
- 01
Open the secret room
Shoot the three Tidal Generator stairwell valves until each indicator turns blue, then interact twice with the revealed terminal.
- 02
Reroute underwater power
Depressurize the Lounge door, enter the flooded route in a Goliath suit and operate the distant switch.
The next round begins Oz’s drone trial. Destroy each empty drone before it can leave the map.
- 03
Charge the capacitor
Bring electric zombies near the Galleria capacitor so their attacks charge it, then finish the following Contact Grenade challenge.
Warning: Electric attacks disable Exo movement; thin the ordinary horde before charging the capacitor.
- 04
Clear the movement trials
Complete the temporary platform route from spawn and survive the next round without letting the movement-cost challenge stop the team.
- 05
Solve the screen sequence
Repeat the changing color sequence on the Reception monitors, then survive Oz’s friendly-fire challenge.
Tip: The monitor order changes between matches; watch the current sequence instead of memorizing a fixed code.
- 06
Match the number panel
Use Exo Slam, jumping, purchases and zombie kills to make the Tidal Generator panel match its target digits; finish the MAHEM-only challenge.
- 07
Enter Oz’s memory
Activate the Tidal Generator terminal again and survive the memory sequence to complete Reunion.
The memory recreates Outbreak’s spawn area. Hold through its zombie waves until the dialogue and finale return the team to Descent.
Following along in-game? Switch to Guided Mode for one step at a time on a screen you can read at arm's length.
References
- 1.Descent Easter Egg Guide — mmmrkennedy. mmmrkennedy.com · accessed Oct 4, 2026Community-verified
Last reviewed Oct 4, 2026. Spotted an error? Suggest a correction.
Original writing and diagrams on this page are the work of CODZombie. For content reuse and licensing, see Copyright & reuse.