Part 91

Continue North past a live turret; disable it with Spy Drone or explosives to find the GREASEL LABORATORY NANOKEY.

In a supply closet to the North, find a LOCKPICK, two BIOELECTRIC CELLS, and a MULTITOOL.

A blast door to the South requires 80% Strength and INF Strength to open. If you have its Nanokey from the South wing, you can access it to find a BIOELECTRIC CELL, two MULTITOOLS, two LOCKPICKS, a REBREATHER, two packs of 10MM AMMO, HE AMMO, a PLASMA CLIP, two clips of 7.62x51MM AMMO, 30.06 AMMO, and BUCKSHOT SHELLS.

Proceed North into Greasel territory. Use your Keyring to open the door and defeat the Greasels.

Climb down the ladder, being wary of a third Greasel.

In the Northeast corner, find the door to continue. The code for the 60% Keypad can be found easily.

Continue to the Southwest, equipping a Mini-Crossbow due to being submerged.

In a room past the submerged corridor, defeat two Greasels and loot the scientist's body for a BIOELECTRIC CELL.

Find the Data Cube with the 5690 code on the floor.

A 60% Strength Locked door to the Northeast contains a crate with a MEDKIT. If you picked up the Nanokey in the South wing, your Keyring can open it.

To the Southeast is a submerged corridor with a Greasel, which you can ignore.

To the Southwest, enter a room with a crate containing a HAZMAT SUIT and a hatch leading to the sea floor, allowing access from the URV BAY.

Return to the 60% Strength Keypad and use the 5690 code to proceed to the tunnels.

At the Tunnel Checkpoint (an auto-save point you restart from on death), find a DataCube with the OCEANGUARD/KRAKEN security login info. The computer has an email. The login not found in-game is YIKAGI/DORAEMON.

Continue East into the tunnels. You may encounter up to five transgenics: two Greasels near the South wall, one fully grown Karkian in the control room, and two baby Karkians near the huge drill.

The door to the Crew Module is locked with a 100% Strength Lock and cannot be broken down. The Nanokey is guarded by the adult Karkian.

To get the nanokey, defeat the Greasels, then the Karkian with an explosive. Alternatively, sneak past the Karkian while it is feasting on an MJ12 Trooper, or Lockpick the door to the Crew Module.

The control room with the Karkian contains the CREW MODULE ACCESS NANOKEY and a RECOIL WEAPON MODIFICATION. Do not touch the red lever near the railway, as it unleashes lethal electric currents.

In the Crew Module, check the two rooms on Deck One. The East room has a BIOELECTRIC CELL in an unlocked locker and another locked locker. All lockers here have a 50% Strength Lock and can be opened with a Combat Strength Dragon's Tooth. This locked locker contains DARTS and TRANQUILIZER DARTS.

The West room on Deck One contains a live Greasel and two locked lockers. The left locker holds a PEPPER GUN and a RELOAD WEAPON MODIFICATION (the last one in the game). The right locker holds a MEDKIT.

Descend to Deck Two.