Crazy

So I decide to do a quick test to seem how the entire cave model would look like in UDK, I'm still planning to cut the mesh up in parts and bring it into UDK that way. I was only interested into seeming how the cave would turn out.
And well its kinda gone crazy in UDK.

So yes as you can clearly see I have no clue why it has decided to go crazy but at less this isn't how I was planning to actually bring the model into UDK anyway.