Description I took it upon myself to mirror all the cliff walls as I was creating a small section for Nightfall making use of a few of them. The map is mirrored like Pipeline and Ravine and you can't perfectly mirror a lot of models which can cause grief. So this is why I made this. To make mirroring easier. How To Use Create a brush along the line of symmetry. From the top-view, select all your cliff wall models, hold down shift, then drag them across. Flip the models horizontally (CTRL + L) or vertically (CTRL + I) and align the brush you've created so it meets up against the line of symmetry. Whilst you still have the models selected hit CTRL + SHIFT + R (Replace) and replace .mdl with _mirrored.mdl. Now you simply have to fix your models rotation which is quite simple. You simply invert each model's angle along the X-axis. So for example I would change this... To this... Enjoy!