And I mean ones that aren't retardedly hard and/or complicated.
I tried one, forget the name, and when it got to the point where the entire mission consisted of something like 2000 battlecruisers fighting each other or something like that, I was like "This is not fun." I won the mission, but it was just stupid.
And I tried one - I think it was called "Fallen Angel" or something? - and the very first mission requires you to do all this massively complicated shit, takes hours to finish, and at one point requires you to micromanage an entire map worth of "civilians" that you can only lose 20 of to the hundreds of Zerg without losing the mission. It had good voice acting and obviously nice production value but fuck, man, I just want to have some fun - not play something that is roughly 50 times more complex and/or difficult than the original single-player campaigns.