Leviathan: Weapons

Wall weapons

The walls of Leviathan hold the weapons below, in the order of the walkthrough of Ernie935. No guide reads out their prices, except the Semtex of the Biodome, sold for 250 points. Two are in the First Room: the M14 and the Olympia of the Reception.

Weapon	Place
M14	Reception (First Room)
Olympia	Reception (First Room)
PM-63	Locker Room and Boiler
M16	Water tube to the power switch; room of the cryo tube; side room of the Cafeteria
MP5K	Seabed on the way to Stamin-Up; rocket silo area
Stakeout	Catwalk area; Laboratory
AK-74u	Pillar of the Submarine Launch Facility; Tunnel 11
MPL	Aquarium; crafting room to the left of the Reception
Semtex	Biodome, 250 points
Claymore	Water tunnel to the rocket silo
MP40	Hallway of the Rocket Facility
Bowie Knife	High on a wall of a room that must be flooded first

Bowie Knife

Out of reach on its wall: a grenade thrown through the window floods the room, and the player can then swim up to buy it. The update of July 11 stopped the knife from replacing the One Inch Punch.

Mystery Box

The Mystery Box moves between many spots: the Reception, the Labs, the Biodome, the Submarine Launch Facility, the Generator area, the Cafeteria, the Rocket Facility and others. Guides pull from it the wonder weapons of the map and the Gersh Device and QED, which the main quest needs. Their boss loadouts also name the Ray Gun Mark II, the RPK, the crossbow, whose upgraded version draws zombies like a Monkey Bomb, and the ballistic knife.

Wonder weapons

The Zap Guns held in both hands, named Zap Gun Dual Wield in the HUD, Leviathan, Call of Duty Black Ops III Zombies

Wave Gun

The dual Zap Guns of Moon, which combine into the Wave Gun. It comes from the Mystery Box and can also be the random weapon of the second personal challenge.

One Inch Punch

The reward of the first boss fight. It opens the painting of the office in the main quest. Ernie935 says it kills in one hit up to round 19, as in Origins, and that no side quest upgrades it.

Poseidon’s Wrath

The specialist weapon of the map, built from three parts. The code 4376 on the keypad refills it.

Harpoon Gun

From the Mystery Box. Three divers killed with it give the Diver mask. With Poseidon’s Eye, it is upgraded at the crafting table of the Laboratory into the crystal harpoon, the weapon most guides advise for the final boss. The HUD of the guides shows two names for crystal harpoons, Crystalized L2 Pressurized Harpoon and Crystalized L115 Perforator; no source read for this book says which one is the upgrade. The update of July 11 stopped a second harpoon from coming out of the Box after the upgrade.

Building Poseidon’s Wrath and the shield

Equipment

Gersh Device and QED

From the Mystery Box, or free: the code 9355 gives QEDs once the Vrill Device is in hand, and a wall of screens filled with souls gives a code for Gersh Devices.

Hacker

Picked up in the Laboratory, in place of the breathing equipment.