There are co-op games to scratch this itch, try Shadow Warrior 2, Warrhammer Vermantide series, or any other game that is co-op RPG, the insistence to turn ES games into multiplayer is absurd, If Bethesda gave you what you wanted then you would bitch because the story would lose its value and be watered down to nothing, at least *If you were a fan of the series, you would understand that as they would have to make changes to allow a group of players in a game, also I don't need a delicate open world game with buggs getting worse because people insist it needs Co-op.
'or perform some teamwork stealth on an enemy camp' - That is just game breaking considering with a sneak attack you can 1 shot everything other than 'bosses' and even then alot of them.