I suspect half he CA people are there to party, they have been partying couple hours before, they are trying to impress each other, they are looking for a good heckling time, they are enjoying themselves, they really do not like the other team, they have lots of energy, they do not care about fans outside their group, and they do not care what other people think of them. By having a large group of similar thinking people, sitting together, you get what you get: enthusiasm, lewd comments, craziness. Is that so bad?
If the above is true, it will not change this year in the last six home games. It is probably similar atmosphere in Kansas, Missouri and Nebraska.
It's more subdued than at the football games, that's for sure.