A Scottish unique light cavalry unit, the Border Raider is distinguished from generic Light Cavalry by its sacrificing hitpoints, offensive strength and speed for added line of sight. Of course, their poor armour and attack, alongside their poor speed, means that against most cavalry-heavy civilisations they might have many problems, but they well make up for it by helping you avoid trouble as opposed to fighting it whenever it comes. For the Scots who are wholly dependent on Caterans and Sciltrons by the Castle Age, the Border Raider can be a useful unit if used as a supporting unit against archers, since it can spot them quicker than most other units.