Safe Haven - Achievement Guide - Starcraft 2: WoL 

This video walkthrough guide covers the campaign mission "Safe Haven" from the video game Starcraft 2 Wings of Liberty, showing how to unlock the mission specific achievements.
Difficulty played on: Hard
Achievements Unlocked:
Safe Haven: Complete all mission objectives (any difficulty)
You Shall Not Pass: Save 3 colonist outposts. (normal or higher)
My Precious!: Save 2 colonist outposts. (hard or higher)