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What's the best counter for mass Mutalisks and Corruptors?

I'm playing Terran at the moment, but I guess this question should concentrate the answers for Protoss and Zerg as well.

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in before "lol thors." –  tzenes Aug 9 '10 at 18:36
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5 Answers 5

There is no unit that will magically let you beat a Zerg air mix, even Thors fall to mass Muta with a little micro. Instead let's break down what there is and discuss possibilities:

One of the things you need to ask yourself is: Is he Corruptor heavy or Muta heavy? This question will influence the result. If he's Corruptor heavy you're going to want more of a ground response. If he's Muta heavy, you're going to want more of an air response. I'll break down units for you based on this decision.

Corruptor Heavy

This is usually an indication he's going Broodlords, so its not a bad idea to build some extra Thor/Phoenix/Corruptor

  • Marines. Any Terran bio structure will have these. They're more cost effective than Muta and with Stim they'll really tear through them. Highly recommended.
  • Ghosts. Zerg air is all bio, and a full Ghost gets 8 shots (360hp) which means that Ghosts eat through Muta. When they're out of energy, you're left with a beefy unit (100hp) with +light damage (and Muta are light). Always a good choice.
  • Thor. Without SCV, Thor tend to die to Muta very quickly. What's worse, SCVs get hit by bounce. Unless you have a bunch of these guys backed by 15+ SCVs I wouldn't make them the bulk of my strategy (plus corruption will really kill them).
  • Missile Turrets. Surprisingly effective vs Muta, especially if you get the range/armor upgrades.
  • Hydralisks. For a high dps unit you can't beat the Hydra. Their low hp means you're going to want to engage on creep where you can abuse your longer range.
  • Infestors. AMAZING against Muta, especially with Hydra. Use fungal growth and "lol" at your opponent as he watches his 50+ Muta helplessly die.
  • Queens. Mass queens are nasty anti, and the healing means you can win this battle without losing a single one (and not spending any gas either).
  • Stalkers. Blink micro is the way to go. If he's big enough to push, don't blink in. Instead blink out Stalkers at low HP, they have a longer range than Muta.
  • High Templar. You actually aren't going to get a ton of damage in with these as Muta are very fast, but sometimes you have to work with what you got, and these aren't bad.
  • Archon. Too slow, too short range, skip them.

Muta Heavy

Against a Muta heavy force you're going to have more success with air to air as every air to air unit stomps on Muta (and breaks even with Corruptors). You're going to want to back this up with a mineral heavy ground force (Queen/Marine/Stalker).

  • Phoenix. The anti Muta; they move while they shoot and have a longer range and faster speed. If he chases you he's dead.
  • Voidray. Not the best as the Corruptors will eat them up, but if you can get charged you'll win. To help charge a large force spread them out and do NOT focus fire.
  • Carriers. Completely nullify the bounce. Unfortunately you die fast to Corruptors so focus fire them down first.
  • Corruptors. This should be obvious: Corruptors beat Muta.
  • Muta. Ok, who has the bigger Muta ball. The reality of this battle is, if you can get off 1 fungal growth, you'll win almost instantly.
  • Vikings. Longer range means you're going to have to harass with these. Don't get into a straight up battle unless you have backup or superior force.
  • Battlecruisers. Not great vs Muta, but better than nothing. Bring some SCVs if you want to win.
  • Ravens. Little known fact: most large air forces are decimated by Seeker Missile... with the exception of well played Mutalisks. This is very much an estimation of your opponent. If he hasn't shown heavy micro, this is a good way to go. If he has, it is unlikely Seeker Missile will be useful. It's worth noting that both of the Raven's other abilities work against Zerg Air, so it's still useful to keep a couple of these around.

Remember, if you see Muta/Corruptor you need to think "How can I use what I have?" NOT "What should I build?"

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Just out of curiosity, could you expand the answer to include counters against a mixed corruptor, muta and broodlord combination? I recently tried it as zerg and easily killed my enemy so i wonder how i should react when faced with it myself –  dbemerlin Aug 9 '10 at 21:52
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@dbemerlin Broodlords are a heavy gas investment so the force will be smaller and involve fewer Corruptors. I'd respond in a similar fashion to the Muta Heavy build. A Corruptor heavy force. If I was forced to play the ground game (however) I'd try to use Ultralisks to deal with the Broodlings backed by Hydras or Infestors. If Ultralisks aren't a valid option, then roaches will suffice. –  tzenes Aug 9 '10 at 22:03
    
You did not mention Voidrays. Voidrays and Phoenixes are a tremendous counter. Especially if he techs to Broodlords. They are so heavy in HP, and that is when Voidrays will be most useful. –  Doug Aug 10 '10 at 12:53
    
@Doug if you look at the Muta Heavy section you will see I did mention both Voidrays and Phoenix. The problem with Voidrays in a Corruptor heavy force is that the combination of Corruption and the lack of charge time (as above 6 Voidrays you'll kill too fast to charge) leave your force rather ineffective. Finally, if he's Corruptor heavy, wouldn't it be more prudent to use a ground force that takes less damage, than an air force? –  tzenes Aug 10 '10 at 18:23
    
No mention of Ravens? Seeker missiles absolutely destroy stacked up air units. Seriously it a HUGE effect on air battles especially. Even a single seeker missile in a large grouping of units can turn the tide of the battle. –  smdrager Aug 18 '10 at 10:25
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A standard troll response to this is "if you let them mass corruptors, you're doing it wrong".

Of course, we're not all experts (myself included), so it is not terribly unusual to find ourselves in these positions.

If I was Terran against mass Mutas and Corruptors, I would consider the following:

1) Vikings with a ground-based support unit. Marines and/or Thors. I don't recall off the top of my head if Thors do area affect on air - Blizzard went back and forth on that in the beta, and it is an upgrade in Single player, just don't recall for Multi in release. And remember to stim your marines!!

2) Lure into fortified positions of bunkers/turrets, while repairing w/ SCVs

3) Counter-attack their bases/expansion. You may end up doing a base-swap, but if your forces will die when confronting the force directly, it's better than losing outright.

Support units in either scenario that could be useful are cloked Ghosts w/ Snipe or Ravens with the Hunter/Seeker Missle (does nice AOE on the air units, which tend to group up a bit)

It's hard to say with certainty, since every scenario is different -how many mutas/corruptors? mid-map, or near your base? upgrades? But there are some options available to you, just be imaginative and remember to micro.

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Simple answers:

Terran

Stimmed Marines and Medivacs with Vikings

Also, Seeker Missles.

Protoss

Blinking Stalkers with Sentries

Also, Psionic Storm

Zerg

Hydralisks with Hydralisks

Also, Fungal Growth

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Mass Mutas?

Thors + Marines with Stim.

A critical number of thors, 3 or 4, will take down a ball of mutas. The Thor anti-air has a bonus against light units, and will do splash damage. Mutas have a nasty habit of clumping together.

A few stimmed marines will greatly assist your thors. The thors will soak the damage and deal splash, while the marines chew them out of the sky.

If he attacks with more than a dozen mutas, then its even more in your favour! The splash damage will be even more effective.

6 Thors (2400 min/1200 gas) can easily take down 24 Mutas (2400/2400).

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For Zerg, there's nothing better than having an army of Hydralisks - even better if you can micromanage well.

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build 2 Infestors and see what they do to a Muta-ball. Its vaguely sick. –  tzenes Aug 10 '10 at 18:24
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