Old Soldiers (achievements) | Char missions SC II: HotS Guide
Last update: 11 May 2016
Old Soldiers:
You will receive this achievement right after the mission completes.
Zergkrieg:
Destroy 20 enemy buildings before the first nuclear strike. Using the troops, you should strike locations [1] [2] and [3], where there are the largest groups of buildings. It is a good idea to take manual control of the swarm and make use of zerglings to kill enemy units. The banelings, on the other hand, should be used for blowing buildings up. If you do not manage to do that in time, you can keep replaying the mission again until you succeed.
Recalled down the thunder:
Complete the mission on the normal difficulty level within 20 minutes. In this case, a lot depends on the first attack. If you manage to destroy most units and buildings in [1], [2], [3], you will be able to reach [4] easily, where you will be granted additional aberrations. With your forces reinforced, you will be able to go for [5] and [6] directly.
If you do not feel up to it, while attempting to acquire this achievement, you can ignore the research facilities. Still, there is plenty of time and there should be no problems completing the mission according to the guide, which should allow you to gain this achievement.