Was commissioned for development by the US Army as a small unit tactics training aid, from which the commercially released version stems. In fact the term "Full Spectrum Warrior" relates to the army's program of training it's soldiers to be flexible and adaptable to a broad range of operational scenarios. Although the retail version carries the disclaimer "This game is not sponsored or endorsed by the United States Army", the actual army training version can be unlocked by completing the game or entering the cheat code HA2P1PY9TUR5TLE.