which led to her mental breakdown. Vipers, Enemies to GI Joe: Apparently, within the Cobra Command anti-freedom-and-puppies organization, the common honorific among soldiers is " Viper ". So, if you're part of Cobra, you may be an Air-Viper of a Mecha-Viper, or a Janitor-Viper. Viper, Telescope: The Viper telescope is used