The cases will be droppable and Its like cases can be opened by keys in, they contain StatTrak Skins (Undroppable) and Non-StatTrak Skins (Undroppable) or a Special Rare Item (An Undroppable Knife Skin).
The weapons of a specific collection are not only droppable in the map for which the collection is named. DMarket Universe offers cheap prices on CS:GO Skins. Collections are groups of skins or doppable unboxable from cases. Buy, Sell, and Exchange AUG Contractor on one of the biggest virtual items trading marketplaces.