The fields are pretty much self-explanatory. Enter the name of the nation in the unique field in case the unit is the unique unit of that civilization. The image defaults to PAGENAME.jpg, but can be replaced with the name of any image, such as UnitABX123xyz.png.
|image = (Use if image is alternate name from the page title)
|ismod = (remove this completely if unit is part of the regular game)
game should be set to the name of the game where the unit was introduced in, if it's not in vanilla. For example, 'DLC' or 'Gods and Kings'.