Hey there. I am pretty good with hammer. Ive made some orange maps and stuff but a couple things ive just never really gotten. Specifically, how to u make terrain (like the boulders on goldrush or hills or anything like that) and how do u make weather (snow on viaduct, etc). I would really appreciate some links to some tutorials o maybe another forum post that discusses this. Please be as descriptive as possible. Thanks in advance! 
