Beta Sig used to be on UNL's campus, as well as Kearney State, which is now UNK. They were at Kearney State when I was there, and from what I remember, were a "normal" fraternity - had the same events and formals as every other organization at the time. They weren't zealots or anything like that, just a bunch of guys who either came from strong Lutheran backgrounds, or just liked the house and what the represented. I don't remember why they folded at either campus, but when I was there, they were a popular group. I should know, I married one! In fact, our first date was their formal.
And it was a great time! What you would expect from any normal fraternity formal. And I will leave it at that!