Although they did not find them and they did not steal anything, the same rules go whether you are vandalizing or stealing somebody else's property.
It's off-topic, but I actually was told the names of who did it by one of the other paintballers and I personally then gave that information to the field manager. From what I know, they've been banned. But it's a good example of how things should be handled.
After Hollis left the place went from decent to crap, I actually snapped my ankle 2 years ago because he was to cheap to remove a piece of metal that my foot got caught between, I went to turn and snap.
So that's the reason the back building was shut down. xD Or you might not be the same guy. From what the ref told me when I was talking to him about it some dude actually impaled his foot back there.