Funky lighting in UDK

Dammage

So I'm very new to UDK and made a small castle level for a class, while I was making the lighting it look perfectly fine, but when I went in to make a preview build this happened:

anyone know what's up with all those weird splotches of brightness and color? Thanks

joeriv

did you make a new UV set in the second channel for your lightmaps?

Dammage

No, How do I do that?

Obscura

https://udn.epicgames.com/Three/LightMapUnwrapping.html

Dammage

Okie Dokie, thanks for the help ^^