Obviously the campaigns appeal at different people , I like the MW campaigns and so do most people I know (we are older games from like 25-40) they are just good. For the Bo2 campaign there was a lot of boring moments and I never really enjoyed it.
They promised so much in the trailers , I actually was glad that the campaign was shorter than in BO1.
Like that RTS mission , you did only have to play the tutorial but still how ridiculous is it to have to defend 3 points ? Thats just chaos not fun.