The Fireship is a specialized naval melee unit that rams enemy ships, doing significant damage. The attack destroys the Fireship in the process. It is available at the discovery of Machinery and becomes obsolete at Steam Power. The Fireship has a custom promotion that keeps its damage high, but also allows it to do extra damage to other naval units (+33%) and cities (+20%) - before it explodes in a burst of fire and glory... The unit will eventually self-destruct if it not used. The mod is fully playable, and includes new unit, unit flag, strategic view, and promotion icons. Download link: https://forums.civfanatics.com/resources/fireship-unit.26677/ Special acknowledgement to Hangman - who did the initial experimentation with adding fire animation to units.