Battened Down The Hatches

Battened Down The Hatches is an Achievement in Halo Wars that is unlocked when the player prevents all of the airlocks on Cleansing from being destroyed.

It is worth 5 Gamerscore.

Tips
Play on Easy difficulty and activate the Sugar Cookies, Bountiful Harvest, Pain Train and Emperor Skulls.

Try to make as many turrets as possible and place Cyclops Units beside the airlocks.