Ancestors Legacy
62 Achievements
GOG
War Veteran
Defeat each type of unit in the game at least once
11.6%
How to unlock the War Veteran achievement in Ancestors Legacy - Definitive Guide
MyDanishReality
TrueAchievements
TrueAchievements
This achievement should unlock through natural progression through the campaigns in the game. Personally it unlocked for me during the 2nd mission of the first Germans campaign, "Rudolf I". This is under the assumption that you have played the campaigns before it, of course.