No worries, but you need to clearly answer my questions so I can actually help you. When you say nothing really happens are you talking about the situation with terrain2.fpk removed or kept? Or does it not make a difference? Alternatively, the art files do not need to be in an FPK. So if you want to keep some files around but remove the FPK, you can also put them under the same path that they show up in if you unpack the FPK (relative to the Assets folder).