Whenever you are manually updating Talisman or Cryptid, or any other mod for that matter, it's a good approach to instead delete the contents of the folder, then install the contents of the folder ...

Port of Portal 1 2007 leaked source code to Source SDK 2013. Also includes fixes for Half-Life 2 maps and gameplay. Unity level design plugin that adds support for Quake .MAP / Half-Life .RMF / Source ...