I want to try to make mountains maybe like vb_nature or nuke_rarea. My main question is... How can i make mountains? I'm not very professional into mapping and when i'm using vertex i only get errors. I'm using J.A.C.K. Yes, @cd5ssmffan told me about terain generator.exe but i simply can't get in using it.
How can i make some pipe's? I found a tutorial some time ago on youtube from some guy who explained it, but i forgot to save that video and now i can't find anymore.