Vaults

Vaults are safes that spawn in the world. They are locked and can be opened. There are four types with different loot.

How to open
They can be opened by either guessing the combination, using a key imitation kit, using a red key, or picking it. Note that the chance of picking goes down from 100% to 10% to 2% to 0% depending on the type.

Loot
More information can be found on the loot tables page

Type 1 (40% chance):

Can contain various materials, grenades, the calamity gun, or 50 bmg bullets.

Type 2 (30% chance):

Can contain advanced quad cell battery, desh ingots, desh powder, diamonds, mini nukes, ammo containers, nuka grenade, smart grenade, yellowcake, uzi (silenced or not), uzi clip, advanced circuits, or overclocked circuits.

Type 3 (20% chance):

Can contain desh ingots, lithium ion batteries, energy powder, satellite ID chip, diamonds, nuclear warhead, mini nuke, ammo container, nuka grenade, mirv grenade, yellowcake, u235 ingot, fatman launcher, lil' pipsqueak, pipsqueak ammo, advanced circuits, overclocked circuits, and schrabidium nuggets.

Type 4 (10% chance):

Can contain: six pack of mini nukes, ammo container, mirv launcher ammo, mirv launcher, fatman launcher, proto mirv, b92 energy pistol, CMB steel ingot, schrabidium nugget, plutonium core, little boy kit, nuke starter kit, rigged star blaster energy cell, mirv warhead, schrabidium power cell, nitanium blend.