Death from Above (achievements) | The finale SC II: HotS Guide
Last update: 11 May 2016
Siege:
This achievement is awarded automatically after the completion of the mission. .
Terran up the Sky:
Destroy 20 enemy structures before the psionic destroyer's field reactivates. The trick is that you make use of Kerrigan's all abilities. Since you do not have an army that is ready to use yet, you need to make do with the assigned units. Destroying the enemy's defense (bunkers and siege tanks) with kinetic blast, killing troops with psionic shift and healing the units that you originally got is the key to success. I recommend that you also focus on disabling the defense, where you leave the demolition job to zerglings. After you destroy [1] and [2], you should start with [3]. Just to make sure. Apocalypse is capable of destroying AA turrets, enemy units and damaging larger structures. The damaged buildings should then be destroyed with Kerrigan's attacks or kinetic blast. There is little time, but that's enough.
Apex Predator:
Do not let Dehaka die during the mission at the normal difficulty level. Keep creating clones and healing. In case of a battle with larger forces, you can use the pulling ability in order to isolate single units. The task is simple as long as you charge right into the enemy forces.