フォルダは自分で作るんだよ。 てか書いてあるでしょ。 「I have created a folder in UTGame called SRC which has 2 sub folders CustomGame and Classes All code will go into the Classes folder」 って。 要は C:\UDK\UDK-2010-09\Development\Src\CustomGame と C:\UDK\UDK-2010-09\Development\Src\CustomGame\Classes を作ってClassesの中にCustomPawn5.ucを突っ込む。