Anyway I totally get what your saying coz a lot of games lately are online only based and as a traditional gamer it who is used to playing single player only games its hard to get used to.
It was a waste of money for me. It was really hyped up, and I was also confused when there was next to nothing to do except these two levels. It did get fun when I bought the game for my husband's birthday and our friend got it. So we were all in one room playing. Except half the time it places us on dif teams
Learn to actually play the ranked modes, they are alpt more different than turf war than you think, and there is tons of customization, you just have to unlock it all