With wall jumping being nerfed this file might come in useful for a few people. Getting back into model editting so I thought I'd post a file I made a long time ago - couldn't find the original so I made it anew - hopefully it works fine, but if not just post a message here and I'll fix it. Next I need to work on a duel flag to staircase so you can lay them on top of each other!
Enjoy,
Octa