Halo Wars
58 Achievements
1,200
82-104h
Xbox 360
Xbox One
Xbox Series
Battened Down the Hatches
Mission 11: Saved all the Airlocks
5
How to unlock the Battened Down the Hatches achievement in Halo Wars - Definitive Guide
This is a good video showing how to get the achievement.
*This is not my video, all credit goes to RoosterTeeth*
*This is not my video, all credit goes to RoosterTeeth*
Do not let the flood destroy any airlocks (square blocks or staircase/ramps). I recommend that you make an early sweep for flood units with all your units while building turrets. Turrets will keep the flood distracted allowing you to keep your airlocks intact. If any get damaged, use the healing option in the leader menu to repair them.
I did this on co-op, what we did is each of us watched one side of the ship to protect the vehicle airlocks, and we occasionally checked up on the infantry airlocks (you don't have to monitor them as much, they almost never get attacked)
Do this on easy, build turrets around the airlocks, make plenty of flying units and destroy everything as quickly as possible, make sure they're still destroyed when the ring passes.