Didn't Tactics have some sort of multiplayer?
But I get what you mean. Still, tthere has long been a stigma against multiplayer being pitched for Fallout. Back in the day, when the “what do you hope to see in Fallout 4” posts were coming around, it was an uphill battle even suggesting optional coop in the open world. People heard “multiplayer” and at the time, the gut reaction from detractors was not being upset over a M(ini)MO, it was jumping to the conclusion that multiplayer always and only meant turning Fallout into CoD.