Grey Goo

Grey Goo

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Beta Campaign Walkthrough for Completionist Achievement (Hard Difficulty plus all Bonus Objectives)
By GreyVixen
This is a series of walkthroughs both in written and video form that show players how to beat the missions played as Beta on hard difficulty plus all bonus objectives.
   
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Hunter's Valley

This mission is an easy one. It's probably the second easiest in the entire campaign (the first Human one being the easiest). There's nothing much to say about this mission save for building up, and don't push out too early or you'll trigger AI aggression. Ensure you produce at least one Predator. The Ai only have scout air units, so Cloudbursts are not neccessary.
Ruk's Bend

In this mission the AI starts to attack you with larger waves, and if you are not quick in building up, you can very easily be overrun. Once you get your defenses up and running, the mission becomes rather simple.

To start, build walls in order to block the three paths to your base and mount them with Predators. Build some Hailstorms to assist. Once the walls are manned, produce an army (Commandos, Stalkers, and Predators work fine) and push out to the north. Work your way around the map clockwise and pick up the secondary objective as you go.
The Quarry

This mission is difficult. Not because the primary objective is hard to complete, but because it's hard to get the bonus objectives. Particularly completing the mission before the AI gathers 25000 resources. it can be done, however.

The trick in this mission is to ignore the primary objective completely. The second bonus objective is to destroy the Human base, and this will also complete the primary objective. Normally, the Human base is quite well defended with sentinels, however the base does have a few weaknesses that can be exploited.

The strategy I use in the video is to only focus on defending the center depot while I produce Commandos, Predators, and Nimbuses. You'll want to produce Nimbuses as soon as you are able to and get the incediary bomb tech for them. Once they start producing, you'll want to take two ir three at a time and send them into the Human base from the north western corner.The Human base has lots of AA, and this corner is where coverage is rather low. Target the conduits on both sides of the main hub in order to cut power to the bae. Three or four indendiary bombs work just fine. Ince power is cut, focus on bombing the last opertational refinery in order to completely halt AI resource collection. The Human AI does not rebuild their base, so once you've crippled their power and resources the AI will have no way of bulding an army. You can take the rest of the level at any pace you wish in order to destroy the rest of the base. You only need to destroy the main hub, refineries, and factories.
The Trench

This is another hard one due to time constraints.

The trick to this mission is to cut off the early rushes with walls, then to economically expand into safe locations. The goal is to produce two Hands of Ruk.

To start, once you finish your factory, place a wall somewhere near your factory and refinery and mount your starting Predator on it. Try to start pumping out Predators asap. Once you curb the inital wave, build a wall partially across the souther approach to your base and fully across the northern approach. You do not need to mount any units on the northern wall, the AI will send its units south instead of attacking it. Next start producing hailstorms to support the wall, which is neccessary since Destructors slightly outrange Predators. Next, expand out to the north western corner and place a medium hub there. The Ai rarely scouts this location, and thus rarely attacks it. Also build two more refineries in your main base and place their extractors on the large catalyst field just south east of your starting location. Place the extractors on the bottom two spigots, as these are the safest and won't be attacked.

While you are doing this, in the nothern location build a hangar and air tech. Start producing some stratuses for scouting and warbirds to kill Cresents. Once you have a few, queue up two Hand of Ruks. You want them to complete at the same time, since the AI starts sending waves as soon as they are fielded. While they are building, send your Warbirds out to find and kill Cresents. One Bird can kill one Cresent. Be careful, as the AI does field some Tempests.

Once your epics are completed, mount them with any available Predators and send them across the northern part of the map. The Ai fields about two-three mothers. One of these is in the eastern part of the map and the other varries from the middle to south eastern part. Once you are all the way across, use one HoR to find and kill these last mothers and the other to wait and trigger the victory condition once those mothers are dead.
Crash Site

This is the final Beta mission and is perhaps the one I see the most people struggle with.

In this mission, the basic strategy is to defend the wall with Predators while rushing for air units and a repair bay. Once you get the second HoR, send it around the map to clear out most of the nests, Dwellers, and Mothers and return it to base for repairs.

To start, get tank test asap and produce Predators on repeat. Send your first Predator to mount the southernmost wall hub to defend against a small protean that likes to climb the cliff there. Have your HoR take out the two nests close to your base and then have it indirect-firing the northern approach to your base so it will fire automatically. Next, produce a small hub plus hangar to get some air units. Build a few Warbirds to take out some of the further nests as well as some stratuses for scouting. Next, queue up a repair bay near your HoR to start healing it. Keep your walls repaired throughout the entire process. It does not matter if your economy is completely overloaded.

Once you get your second HoR, send it around the map counter clockwise to take out nests, Mothers, and Dwellers. Once it falls into the yellow bring it back to base for repairs and then send it out again once healed. Rinse and repeat until you kill all Dwellers and finish off the mothers. If you have trouble finding them, get some stealth tech for stratuses or seekers and hunt them down that way.
8 Comments
It's a trap!™ 3 Apr, 2019 @ 3:08am 
You deserve a cooking my friend :2015cookie:
Orlendis 18 Oct, 2017 @ 5:56am 
I can't seem to get the achievement for all bonus objectives. I've completed the whole campagin and DLC on normal, and when looking into my profile, it shows the check marks on every bonus objective on every level (including tre secret one for being cautious). Any ideas anybody?
Xycon 25 Feb, 2015 @ 9:17pm 
finally got that one done ... apperently i had to make the builds in a specific order else it would not trigger
Xycon 25 Feb, 2015 @ 8:48pm 
i have had a silo every single time out of the 6 times i played that mission
never seen that bonus

GreyVixen  [author] 25 Feb, 2015 @ 8:46pm 
It does not notify you of the additional objective until you build the silo. The game does a really poor job of notifying the player.
Xycon 25 Feb, 2015 @ 8:28pm 
All I ever get is build 4 sentinals of any kind and secure 2 fabrication matrix as bonus objectives, after doing that i do the primary of killing all goo. It never gives me any more then that.
GreyVixen  [author] 24 Feb, 2015 @ 11:20pm 
The other two factions have been slow going due to irl time constraints. I have 2 out of the 5 Human missions recorded so far. Although for the Humans, on the first mission make sure you build a silo and research an eco tech. There's a bonus objective for that that's easily missed.
Xycon 24 Feb, 2015 @ 8:30pm 
Are you planning to make this for the other 2 factions aswell? I seem to be missing some human bonus objective to complete an achievement eventhough i done every missiog 2-3 times.