Skins from The 2018 Inferno Collection are obtainable through the weekly drop.
The 2018 Inferno Collection is a Valve-made collection of CS:GO skins introduced on 01 September 2018. The collection consists of 5 consumer skins, 4 industrial skins, 4 mil-spec skins, 3 restricted skins, 2 classified skins, and 0 covert skins.
The 2018 Inferno collection was introduced as part of the London 2018 FACEIT Major and replaced the existing Inferno collection. The CS:GO skins were first available in the London 2018 Inferno Souvenir Package.