You're going to find a lot of people deeply hate the idea of multiplayer in a Bethesda RPG and I am one of them. There are so many MMO and Co-Op games right now that it is already getting harder to find good single-player RPGs .
For me, it matters not that its a game by Bethesda, but that it is a :fallout: game; I'd oppose Multi-player Fallout (specific) even if Black Isle arose out of the ashes and bought out Bethesda to resume it's own Fallout 3, 4 & 5.