Naval armament includes a TORPEDO, which is a self-propelled guided missile that contains an explosive warhead and is launched underwater towards a target.' Naval armament is a term used to describe the weapons and other military equipment used by navies. One of the most common forms of naval armament is the TORPEDO, which is a self-propelled guided missile that contains an explosive warhead and is launched underwater towards a target. Torpedoes are typically used to attack ships, submarines, and other targets in the water.