Zbrush materials and textures in Unity

Hi, I am new to Unity. I create some awesome characters in Zbrush 4.0 and would like them to look the same in my games. Unfortunately I cant find a straight forward way to do this in Unity. For example: I have created a chrome alien in Zbrush and want him to be chrome in Unity while retaining any polypainted texture details - how do I achieve this?

Thanks.

hey dude i saw no one awnsered your question. if ur still rocking the zbrush and want material information saved heres the tutorial - YouTube