The Moebius Factor (Achievements) | Campaign - Artifact missions SC II: WoL Guide

Last update: 11 May 2016

The Moebius Factor:

Destroy the Data Cores, Kerrigan Must Not Access a Data Core, Destroy the Brutalisk.

Alive Inside:

You must save five groups of mercenaries. They're well worth it, because of the experience they have. Their locations have been marked, three of them can be gathered on your way to the second core. The two others require you to travel a bit more.

Note that one of the groups has hidden in one of the side-buildings and their presence is marked by an appropriate sign. For them to leave the hideout, you have to fly there.

Hard Core:

Despite the name, it's not a hard achievement, though you'll probably have to load the game a couple times. Your biggest enemy is once more time, as you have around 16 minutes to destroy all three cores.

Begin extending your base. Save the first group of mercenaries with the Medivacs you received and destroy the nearby Core while you're at it. Move them all to the base as the Zergs will attack soon, including a Nydus Worm. The Spartan Goliath will be able to shoot it down without having to worry about Spine Crawlers'' attacks, so don't put any smaller units to risk.

Mobilising your units for the next core should last, more or less, until Kerrigan start searching the third building - by waiting longer, you risk not making it in time. Until then, place two bunkers and aid them with a couple tanks. Also try to buy as many upgrades as possible in the Engineering Bay and Armory. Be sure to invest in more Mercenaries. Don't leave elites in the bunkers, swap them for normal ones and take with you. Have two or three empty Medivacs (to save the experienced survivors) and head towards the second core.

On your way, collect two additional groups of mercenaries by landing by the Marauders. There's a problematic swarm of Zergs round the building and they certainly won't let go easily. You should however focus on getting to the core as fast as possible, eliminating the irritating Infestor and Spine Crawler (I'd suggest Siege Tanks). Have Medivacs heal your units, but avoid the Spore Crawlers at the same time. Right after destroying the construction Nydus Worms will appear, so be ready to destroy their arrival.

Get to the third core on foot or fly a bit in the Medivacs. Just stick to the right side (fewer Zergs) and approach the Core from the south-east side. Earlier, collect only two groups of mercenaries from the roofs, as a Nydus Worm will appear by one of them.

Once beside the Core, don't attack the neighbouring Hive and focus on the target itself and your own defence (lower priority). Once the building is damaged enough, you will be attacked by an enormous wave of Zergs, but the destruction of the Core will be very close.