"Amongst the 700 subcategories of inventory items you can gather like a bum with a shopping trolley are mutagens and weapon upgrades. But if you ask how you're supposed to equip them then you're committing a social faux pas again. Why do I even have an inventory screen if double-clicking on every single item makes the game slap you across the wrist and say "No, we do that from a different screen! No we won't tell you which one! And put on a fucking tie! Where were you raised, Azeroth?!""