tldr: double gas 2 reaper 1 hellion FE into 1 raven into 3/1/1 into 5/1/1 marine tank all-in

Relatively simple TvT build order for Platinum and Diamond players looking to learn how to play Terran Bio. Recommended for players that are race switching or only have a limited repertoire of openings, such as ViBE's B2GM Mech build.

The build opens with a double Refinery with a fast Factory, which is one of the safer and more common openings in professional TvT in 2020.

After taking the natural CC, the objective is to build one Raven and one Cyclone, which will help defend any possible early aggression. We then proceed to transition to 3 Barracks relatively quickly, as well as an Engineering Bay, prior to any third CC. This allows us to build up a large Bio army faster than standard TvT play, which allows us to be aggressive with our units in the midgame.

After getting to the 3/1/1 setup, we finish saturating our two bases with up to 46 SCVs (Note: with good macro, this number is reachable by 5:50). After that point, we stop building workers and we have two choices in transition. We can either take a third CC (on location) or add two extra Barracks and go all-in with 5/1/1. I would recommend for newer players to use the 5/1/1 variation at first. This will allow you to practice Marine Tank engagements and have games that end more quickly, so you can pra tice more.

For any questions or feedback on Pfoe's build order series, visit the #terran-discussion channel in the SC2Swarm Discord here:

Replay - Pfoe's TvT Plat to Master Build Order

Build Order

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  12  0:00  SCV  
  13  0:12  SCV  
  14  0:17  Supply Depot  
  14  0:24  SCV  
  15  0:30  Refinery  
  15  0:38  SCV  
  16  0:43  Barracks  
  16  0:50  SCV  
  17  0:57  Refinery  
  17  1:02  SCV  
  18  1:15  SCV  
  19  1:30  Orbital Command, Reaper  
  20  1:35  Factory  
  20  1:46  Supply Depot  
  20  1:56  SCV  
  21  2:02  Reaper  
  21  2:08  SCV  
  23  2:19  Hellion  
  23  2:20  SCV  
  26  2:25  Command Center  
  26  2:35  Barracks Reactor  
  27  2:39  Supply Depot  
  27  2:42  Factory Tech Lab  
  27  2:51  Starport  
  29  3:01  Cyclone  
  33  3:13  Marine x2  
  36  3:31  Marine x2  
  38  3:36  Orbital Command  
  38  3:38  Raven  
  41  3:42  Factory Tech Lab, Refinery  
  42  3:49  Marine x2  
  42  3:53  Supply Depot  
  46  4:03  Siege Tank  
  49  4:13  Engineering Bay  
  51  4:24  Barracks  
  52  4:31  Stimpack, Starport Reactor  
  52  4:32  Barracks  
  53  4:40  Terran Infantry Weapons Level 1  
  53  4:41  Marine  
  55  4:46  Supply Depot  
  56  4:54  Refinery  
  56  4:56  Siege Tank  
  61  5:08  Marine  
  64  5:14  Starport Reactor  
  64  5:20  Marine x2  
  70  5:28  Siege Tank  
  81  5:50  Medivac x2  
  88  6:01  Siege Tank  
  91  6:10  Combat Shield  
  96  6:20  Medivac x2  
  100  6:26  Barracks x2  
  100  6:35  Siege Tank  
  108  6:55  Medivac x2  
  117  7:08  Siege Tank  
  117  7:13  Barracks Reactor x2  
  125  7:37  Medivac x2  
Spawning Tool Build Advisor. Get it on Overwolf


-After starting your Factory, take 3 SCVs off gas and save up for a CC.

-We build 2 Reapers and 1 Hellion for early defence. We get a Reactor on the Barracks and Tech Lab on the Factory afterwards.

-After 100% Cyclone, swap add-ons with the Starport so you can start your Raven immediately.

-After 100% Raven, we swap our Barracks onto the Starport's Tech Lab. We then build two Barracks at the same time, with one on the original Reactor. The Starport will then create another Reactor for the third Barracks to use.

-After the Barracks are complete, do the final add-on swap onto the Starport Reactor and create one final Reactor with the Starport.

-Mid-game setup: 3 Barracks with 1 Tech Lab and 2 Reactors. 1 Factory with Tech Lab. 1 Starport with Reactor. (3/1/1)

-Initially, build one Supply Depot at a time. When your second and third Barracks are almost complete, that is when you should start building two Supply Depots at a time instead of one. This is because you are about to EXPLODE in production with your 3/1/1 setup.

-At 46 SCVs, stop building workers. At this point you can either build two extra Barracks (Reactors to follow) and go 5/1/1 all-in on two bases, or build a third CC followed by two Barracks and continued SCV production afterwards.

-When macroing, try to prioritize gas spending first. You should be spending gas on Siege Tanks, Medivacs, upgrades, Reactors, etc. Once all your gas is spent, you can spend the excess minerals on Supply Depots and Marines.

-Tactically, you can use the Raven spells offensively to disable important Siege Tanks and cast Auto-Turret to deal and take damage (Missile ability is not recommended). Your first move-out can be when the first two Medivacs spawn, and you will be looking for a kill on the opponent's third base if applicable. The next timing is with 4 Medivacs, which is also around when your Combat Shields will be hitting. Note that if you have a Raven selected along with Marines, you will have to press Tab to Stim. Use scans liberally so that you can fight with confidence. Remember that as your Medivac count increases, you will have the opportunity to utilize "doom drops" - where you load a huge amount of army into several Medivacs and drop them into the opponent's main base.

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  • Created by: Pfoe
  • Published on: Oct 13, 2020
  • Modified on: Oct 15, 2020
  • Patch: 4.11.0
  • Difficulty: Medium
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