Yeah, that's what I was afraid of. I've seen rumors that Workshop mods might load in the order they were subscribed, but that's just speculation AFAIK. At the moment, multiple mods simply cannot overwrite the same class, yes? There's no way to merge changes from multiple mods into the same class to my knowledge. Load order would help of course, but not really completely solve the problem. I've no doubt these problems will be solved in time, though. Modders are smart folk.