Leroy Thompson trained and advised military and police special operations units around the world, focusing especially on the tactical use of firearms. He has previously had 40 books published and more recent titles include The Hostage Rescue Manual, The Counterinsurgency Manual and Secret Techniques of the Elite Forces. He has also had various firearms books published including Great Combat Handguns, and appeared as a weapons expert on documentaries for Discovery, National Geographic and the BBC.

Johnny Shumate works as a freelance illustrator living in Nashville, Tennessee. He began his career in 1987 after graduating from Austin Peay State University. Most of his work is rendered in Adobe Photoshop using a Cintiq monitor. His greatest influences are Angus McBride, Don Troiani, and Edouard Detaille. His interests include karate, running, Bible reading, history, and making English longbows. Born in Malaya in 1949, Alan Gilliland studied photography/film and architecture, and has worked as a photojournalist and cartoonist. He also spent 18 years as the graphics editor of The Daily Telegraph, winning 19 awards in that time, including numerous UK Press Awards. He now writes, illustrates and publishes fiction ([...] as well as illustrating for a variety of publishers (including Osprey, the Penguin Group, Brown Reference Group, Ivy Group and Aurum), architects and developers, such as John McAslan (Olympic Energy Centre) and Kit Martin (Prince Charles' Phoenix Trust advisor on historic buildings). [...]