Railgan ZvT - 3 Roach Opener into Corruptor (ZvT Timing Attack)

Description

In depth *Guide *can be found here: http://www.teamliquid.net/forum/sc2-strategy/519983-zvt-3-roach-opener-2017-version

Idea:

Terrans almost always open with a Reaper. By sending two Lings around the reaper we are able to do economic damage and get good scouting Information. It is very early on that the Terran decides what kind of opener he is going for.

We follow it up with 3 Roaches to one shot Marines / SCVs. As a lot of Terrans are scared of Ravager pushes, they might even misread the build if they didn't scout properly and think it's an allin. We follow it up with 2 Hatch Roach Corruptor to shut down drops and safely get a 3rd.

The 3 Roaches can be misread in many ways. There is Dark's 19 Drone Allin where you go 3 Roaches + 5 Roaches into mass ling allin. There is the 3 Roach into 2 Roach into Ravager push and many others. It's hard for a Terran to read what exactly he is up against so Terrans will often overcommit / undercommit to defense.

Eventually the goal is to max out @ 8:30 with Roach Ravager Corruptor + 1 on 4 Base economy.

Strategy:

The build uses 3 Core Units: *Roaches *to tank damage and deal deal with the Terran in the early game. *Ravagers *to make the Terran move and dodge the Corrosive Biles. Corrosives should be used to kill tanks / liberators primarily. *Corruptors *to snipe the Medivacs and provide high ground vision.

VOD

Replay - 2017-03-10 - (Z)Railgan VS (T)Glückskeks

Build Order

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Analysis

Why not Mutalisks?

I generally prefer Corruptors vs Terran. However, there are Situations where going for Mutalisks is better. Mutalisk Roach is pretty weak versus the 16 Marine Opener as the Mutas just get sniped by the stimmed marines and the medivac is about as fast as a Mutalisk while boosted. Against other Openers going for Mutalisks can be good though. Hellion / Cyclone openers struggle dealing with Mutalisks and make the Terran overcommit to Widowmines / Turrets / Thors. The biggest disadvantage of going for Corruptors is that the Terran does not need to add Turrets to his mineral lines.

Adjustments:

Vs 16 Marine Drop (2 Barracks) None needed the Build is designed to perfectly counter a 16 Marine Drop

Vs Single Factory Usually Hellions so just make sure that you have an overlord spotting for hellion drops in your main / natural and keep some queens / 2-3 Roaches ready to defend hellions Runbys

vs Double Factory Usually Hellbat Cyclone what you need is 3 defensive Queens or 1 Queen + 1 Spine and a couple Roaches behind it. Build Mutalisks instead of Corruptors here if you feel like the Terran would struggle. Usually a Roach Mutalisk push will kill him before you even take your 3rd. Delaying your 3rd is no issue vs this build.

vs Banshees (Techlab Starport) Usually coupled with Hellbats / Hellions. Use a defensive overseer and you might want to add a spore per base and definitly go up to 5 Queens total. Definitly get Overlordspeed so you can catch the Bancheese.

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Details

• Created by: railgan      
• Published on: Mar 29, 2017
• Modified on: Mar 29, 2017
• Patch: 3.8.0

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