Yesterday yyler and swordfish helped me a great deal with this already, pointing out that my map needs func_details after I asked for help. Did that, but I still have a problem. When I compile my map, only bsp, no RAD or Vis and only have world geometry and point entities enabled, the compile log tells me I have a leak, but there is no .lin file in my map folder. If I compile it with everything enabled, it does give me a leak and a .lin file, but the leak goes straight trough solid brushes, even if I delete / recreate the brushes it just generates another leak somewhere else. The compile log is here: http://pastebin.com/91Zz2HNp The .vmf file of my map is here: http://forums.tf2maps.net/downloads.php?do=file&id=5250&act=down It's my first map, so it's probably really, really awful with lots of mistakes, but I couldn't find what I've done wrong here. Any help would be greatly appreciated.