Mission 4 - The Trench | The Beta campaign Grey Goo Guide

Last update: 11 May 2016

Primary objectives:

• Build the Hand of Ruk.
• Get the Hand of Ruk into the marked area.

Secondary objectives:

• Destroy 5 Crescent units.
• Destroy all Mother Goos.

You start to the West [1]. Right after you build a factory, put a turret next to the base and man it with a Predator. After a while, the base will be attacked but, thanks to the turret, you will fight it back. If you do not put it there, the enemy destroys the Predator, the strongest of your units at the beginning of the mission. Without it, your chances to defend drop drastically.

The enemy will launch regular attacks with small groups of units and, occasionally, he will launch a bigger attack. For this reason, during the first minutes, you need to focus on your defenses. Build walls on the two access routes to your base and man them with your units. Then, form two smaller combat teams and dispatch them to the North and to the South. In the corners of the map, there are three resource deposits [2][3][4]. Start mining there with the refineries attached to the Small Hub. Protect the mines with turrets and small groups of units. If you have sufficiently enough resources, block off the remaining two passages to the base [5][6]. The additional mines will ensure you with enough resources to complete the mission.

Expand the main base. Your objective is to unlock the Large Hub. In the meantime, build a hangar and four bombers. Dispatch them to the East. In five spots on the map [7][8][9][10][11], there is enemy artillery. Reach each of the points and bombard the unit. Some of them, have slight AA defenses. You can destroy it earlier, or ignore it. In the worst case, you lose one of the bombers.

While bombarding and defending the base, start building the Large Hub along with all the buildings that are required for you to build the Hand of Ruk. Try to do that with, at least, 20 minutes of spare time, or you will run out of time to complete the mission. If you have to, hold your production of units and research. Right after you get the building built, issue an order to build the Hand of Ruk. After six minutes the unit will be ready. In the meantime, prepare a big group of Avalanches and Predators to serve as your protection.

With Hand of Ruk and, at least, 10 minutes spare, form an assault team. If you have Guardians, use them to man the Hand. If you do not, order the Hand to build them. Then, team your superunit with the rest of the army and order them to go east [12]. The route you take is up to you. You can reach the target both over the Northern and the Southern paths. Just make sure that you have dealt with artillery, or you will expose the Hand of Ruk to enemy fire.

Right after you have built the Hand of Ruk, large groups of weak units will start approaching the superunit. You can destroy them with the Hand's rockets, or with its defenses.

Keep pushing east. You will reach Goo fortifications (Reinforced Goo Nest). There is no other way to destroy them, than with the rockets of the Hand of Ruk. Do not approach them, because they wound all of the units within close proximity. Using the Hand, clear the path and then, eliminate the opponent that blocks the marked place [12]. You can do that with frontal attack, as well as use rockets of the Hand of Ruk. Place one unit in the marked area to complete the mission.

The other secondary objective requires scouting, from the air, at best. Mother Goos may be located in any place all over the map, but they area most frequently encountered on deposits. Most of the times, their defenses are poor. Find them, send a big group of ground units against them, or bombers, and destroy them. If you do that quickly, you should find only one unit of this type.