This plugin fixes a texture fail which you can use to see through the wall at de_dust2. The plugin adds a shield between the two walls that will prevent you from seeing through the texture fail.
It required testing to get it properly working, it didn't work if you just did put it there between the two walls, it was about units away from the wall where you look at which would make it work.
I made a fast video where the texture abuse is shown,
(with and without fix).
Tested with amxmodx 1.8.1.