StarCraft II Part 18 Walkthrough & Guide

Q: How to protect the Protoss Archive in StarCraft II?

Follow this StarCraft II Zeratul tactics guide to clear objectives and defend against overwhelming enemy forces in Part 18.

Q: What are the mission objectives for Part 18 in StarCraft II?

Follow this StarCraft II Zeratul tactics guide to clear objectives and defend against overwhelming enemy forces in Part 18.

Q: How to defend against waves in StarCraft II?

Follow this StarCraft II Zeratul tactics guide to clear objectives and defend against overwhelming enemy forces in Part 18.

Q: When do Void Rays arrive in StarCraft II?

Follow this StarCraft II Zeratul tactics guide to clear objectives and defend against overwhelming enemy forces in Part 18.

Q: How to get Protoss Research in StarCraft II?

Follow this StarCraft II Zeratul tactics guide to clear objectives and defend against overwhelming enemy forces in Part 18.

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Walkthrough

1
Use Zeratul with an observer to safely kill ultralisks from a distance.
2
Activate the southeast tentacle and move north.
3
Move your stalker force north to take out the overseer, then retreat to avoid acid crawlers.
4
Send Zeratul to clear remaining enemies.
5
Near the next overseer, have Zeratul clear zerglings and acid crawlers, then stun and kill the Spine crawler before retreating.
6
Have stalkers re-engage to destroy zerglings, acid crawlers, and the overseer.
7
Clear the nearby hatchery to the west using the same method: Zeratul clears, stuns and kills the spike crawler, then retreats while stalkers finish the overseer.
8
Clear the area and claim the second (northeast) tentacle.
9
Position 10 stalkers west at the top of the ramp leading into the area.
10
Send Zeratul back to your base, then head north with another 10 stalkers.
11
Move your troops to the second obelisk but do not activate it.
12
Continue north with Zeratul clearing all enemies until an overseer is spotted.
13
If overseers appear, send stalkers to kill them, fall back, and send Zeratul back in.
14
Reach the ramp east of the northern base and send all troops, including the 10 stalkers from the previous ramp, to clear it.
15
Clear the northern tentacle and claim it.
16
After clearing stationary troops, place a pylon near the second obelisk.
17
Send Zeratul to the fourth and final tentacle at your second base to complete the mission.

Crystal - Protoss Mission 4 - In Utter Darkness

Primary Mission Objective: Witness the Coming Apocalypse

Research Opportunities: +2 Protoss Research, +4 Zerg Research

In Mission Objectives:

Kill 1500 Enemy Forces [research]
Defend Until the Last Protoss Falls

Bonus Objectives:

Protect the Protoss Archive [25min] research

This mission focuses entirely on defense. Build numerous cannons near the three main entrances and produce several zealots and stalkers.

The first wave comes from the northeast, the second from the northwest, and the third from the southeast. The final wave includes an ultralisk. All waves send mutalisks that should be shot down with phoenixes. After one wave from each of the three entrances, hybrids will attack from the north.

The second full wave is fierce, starting from the northwest, then southeast, and finally the north. These waves contain more zerglings but are otherwise moderate. The third wave includes more hybrids. A squad of 5 Void Rays will arrive to assist. Begin producing void rays exclusively and continuously.

The third full wave begins with an attack from the northwest including a single hybrid. The second wave comes from the northeast, the third from the southeast, and a fourth attempts to sneak in from the northeast halfway through. Upgrade your air weapons and armors; focus solely on producing air units from this point forward. Conserve all resources for training starships.

Between the third and fourth Major Waves, Nydus Worms will emerge near the archive and will be quickly dealt with by Void Rays. Afterwards, five carriers led by Zelendis will arrive. Have one stargate warp in Void Rays and the second warp in carriers. Remember to build interceptors for each new carrier.

The fourth major wave starts with attacks from the northwest, then the northeast, followed by a feint to the northeast and a real attack to the southeast. Your air fleet should now be capable of sustained combat.

The 5th and 6th waves arrive nearly back-to-back. After the 6th wave, there is a short break until the 25-minute timer is up. If successful, you should have nearly 1000 kills. Continue until 1500 kills are reached.

After the break and the 25-minute mark, a large force will build to the northeast. Do not engage; backtrack into your base and wait for Nydus Worms to emerge in your rear sections. Clear them out, then head northeast. Send any surviving ground troops to your rear base and rely solely on your air fleet. Ground troops in the back will provide defense and early warning for future worms.

Surviving another 2-3 waves grants a Purifier. Add it to your fleet and retreat to your rear base. Slaughter as many enemies as possible before falling back for successful mission completion. Reaching 1500 kills triggers a small cutscene (a non-interactive cinematic the game plays automatically), after which the true flood begins, making further kills a matter of bragging rights.

Mengsk - Secret Mission - Piercing the Shroud