de_rats.vmf strange ladder

I've been having a f*cking hard time with ladders, and it's a pain because you can't make sewers or any good map without a ladder. I followed the SDK documentation on how to make ladders, and it didn't work. I followed numerous online tutorials and they all didn't work. (this is CS:S but I don't think that has anything to do with it) So I got hold of a .bsp decompiler, and I decompiled de_rats. When I did that and looked around, there wasn't any of these complicated info_ladder_dismount crap, instead on all of the climbable surfaces there was just a thin orange strip. When I moused over it, it said it was "solid with six faces" and it didn't appear to have any special properties. Anybody know what this is? Because it looks nice and simple and I am dying for some ladders.

EDIT:I tried decompiling cs_assault to see how those ladders were done, and they were done the same way. The climbable surfaces were covered with a thin box textured with tools/toolsinvisibleladder I think. Will this allow the surface to be climbable? Even without tying to entities or anything like that? Because that is a hell of a lot easier then the stupid boxes.

PWN.

HAHAHHAHA! It worked! All you need to do is texture an object with tools/toolsinvisibleladder and the surface becomes climbable. This is so much easier than that stupid way everyone else does.

NOTE: I'm posting this as a solution so that I can just say it is answered because it is.

Didn't work for me in Hl2dm. Is this only CS:Source? Sofar, I absolutely hate Hl2 ladders, so I was hoping this would work....bah.

I did in in Source because that's what I play, I haven't tried in DM. But I hate the way they do the ladders too.

The difference with texturing a brush with tools/toolsinvisibleladder is that you can dismount at any point instead of needing to use info_dismount entities, so you can strafe off the ladder in a wild direction instead of staying on the set path until the info_dismount.

I like to tools/toolsinvisibleladder style better because it lends to more freedom. I don't know if it works for DM, if not I guess you're stuck with the traditional way.