Alright well here they are. I make walls and floors into trigger_hurt but when I load up my game I can see right through them and they look like screwed up graphics of whatevers right next to them. So I though well ill make another platform beneath them as func_wall but that didnt seem to work. Anyone know how I can keep the trigger_hurt and make it so the wall is visible?
Also I have a question about backgrounds such as mountains an whatnot. How do I make those my backgrounds instead of those ugly plain black ones?
What plain black ones? Anyway, just make something like a lid to your map and texture it with the Sky texture.
You want to make your own skybox?
Or you just want a standard night-time one?
In Hammer, got to Map->Map Properties...
and set environment map
to "night" or another valid skybox name. Here are some CS sky names: