HOW AND WHERE TO OBTAIN:
The basic breakdown goes as follows:
NBC Zombie -> Toxic Key -> Toxic Crate ->Oil Rig Keycard -> Oilrig Vault -> Temple/Arctica Keycard
NBC Zombie: Can be located near gas zones - dressed in grey / yellow NBC Suits. Chance to drop Toxic Key.
Make sure to wear NBC gear + a gas mask or you will fall to illness! And it's a pain to get rid of!
A pro tip: Use a loud gun outside of the toxic gas to draw their attention - let them come to you!
Toxic Crates: Found in toxic gas zones (NBC Gear will be required) and has a chance of the oilrig card.
Use the key to open the crate, make sure to keep an eye on your filters durability!
Oil Rig Keycard: Found in the toxic crate. It's small - so make sure to check the whole crate! It's not a guaranteed spawn - but you'll want to take it with you.
Hint: These can be very valuable, as you can find access to the vault which could lead to top tier loot!
Oil Rig Vault: Found on the Horizon Oil Rig in the Sea. Chance to find the Temple / Arctica keycards inside the vault! As well as up to .338 caliber weapons and of course, toxic gear / armour!
VOTE BELOW:
SHOULD WE ADD MORE KEYCARDS?
Yes.. Duh..
No.. There are more than enough!
Instructions weren't clear, I'm glued to the ceiling.