If you don't care for the Scottish faction, there isn't much "new" tech here.
This DLC is largely a tribute to the "Braveheart" era of Scottish warfare, adding a new nation and specialized mechanics that differ from the standard European factions in the base game. Kozacy.3.StraЕјnicy.WyЕјyn.rar
Scotland’s playstyle emphasizes hardy infantry and aggressive early-to-mid-game maneuvers. If you don't care for the Scottish faction,
Since you are looking at a .rar file, ensure it is from a legitimate source like Steam or GOG to avoid malware or compatibility issues with the latest game patches. What is Cossacks 3 - An Overview / Review Kozacy.3.StraЕјnicy.WyЕјyn.rar
Highlanders change the "Pike and Shot" meta by being more aggressive.