[diamond-optic]

ya it would have to be a model to be placed over the wall and have just a little more thickness to it to cover it.. but then you'd need a diff model for each diff part of the wall or whatever... and you'd probably need way to many models and you'd go over the limit and crash the map..

youre best bet might be to edit the mapfile's WAD file and then host it somewhere as a custom wad replacement and maybe put a msg in the server where to find it.. tho usually only some of your regulars would be bothered to download it..