3rd 505th addon - 3RD505TH mod for Half-Life

A 1999 Half-Life Mod/Map. The map itself is alleged to be by a member of the USMC (Jim himself), and that 3rd 505th numbers have to do something with the number of his battalion that he was in while he was on his serving. The original readme file included with the map contains at least two praises ("I'm in the book" and "Go read a book", and doesn't tell which book to read) and Donovan also says that "Half-Life is a war-simulator" which is actually kind of incorrect.