To the North! will not complete if you save and load the game. You have to complete it on Hard in one go. This is tied in with this bug: https://forums.ageofempires.com/t/achievements-will-not-trigger-if-you-load-a-saved-game/
To the North! will not complete if you save and load the game. You have to complete it on Hard in one go. This is tied in with this bug: https://forums.ageofempires.com/t/achievements-will-not-trigger-if-you-load-a-saved-game/