Tom Clancy's Rainbow Six: Covert Ops, is a stand-alone expansion pack of Tom Clancy's Rainbow Six: Rogue Spear. The training simulator was developed by Magic Lantern Playware, six of the levels were done by Zombie Studios and three of the levels were done by Red Storm Entertainment. It was released on September 28, 2000. It included nine new missions. The product was primarily developed as an educational program on real life counter-terrorism history and tactics. Source: Wikipedia, "Tom Clancy's Rainbow Six: Rogue Spear", available under the CC-BY-SA License.