Just use the Karith ('karith/ladder') one, pretty much everyone seems to use it.
LOL, sure not all! I prefer always put textures in map. =)
So... thats ladder shader u need:
textures/your_map_name/my_ladder
{
qer_trans .5
qer_editorimage textures/your_map_name/ladder.jpg
surfaceparm ladder
surfaceparm nodraw
surfaceparm nolightmap
surfaceparm nonsolid
surfaceparm trans
surfaceparm nomarks
surfaceparm noimpact
surfaceparm playerclip
surfaceparm metalsteps
}
You can ignore this "
qer_editorimage textures/your_map_name/ladder.jpg " if you dont care about editor view. =]
Just put this shader into your *.shader file and use it in your map. Note: Dont forget change
your_map_name to your map name!