This is Clem's 1/1/1 into Fast 3rd CC with Hellions against Serral (Zerg) in the Grand Final of the Maestros of the Game tournament (27/09/2025).
Your main army composition should be 6 Medivacs, Marines and Widow Mines. Potentially you still have your scouting party composed of 1 Reaper and 4 Hellions. 4 of those 6 Medivacs should be in the frontline with your army, the other 2 should be at your Rally Point in front of your Natural to defend against counterattacks.
| 14 | 0:17 | | Built it at your ramp with you first SCV produced |
| 16 | 0:42 | | Build Reaper into Marine then Reactor, use builder to scout |
| 16 | 0:43 | | Saturate it right away |
| 19 | 1:27 | | Scout opponent, When finish resume SCV production and constantly drop MULEs |
| 20 | 1:39 | | Turn it into Orbital Command right away |
| 20 | 1:47 | | Built it to finish your wall in ramp |
| 21 | 1:59 | | Rally in front of your natural |
| 23 | 2:10 | | Swap it for the Barracks to use the Reactor for Hellion production |
| 24 | 2:21 | | Swap with Factory right away |
| 26 | 2:41 | | Built it in the high ground (your main) |
| 26 | 2:51 | | After finish continuously build SCVs and drop MULEs |
| 27 | 2:59 | | Build a Liberator right away and rally to the other side of the map |
| 27 | 3:03 | | Saturate it right away |
| 28 | 3:10 | | Rally them to your Reaper, build a total of 4 Hellions |
| 35 | 3:30 | | Research Stim Pack right away |
| 42 | 3:42 | | Send it to undermine the opponent's mineral line |
| 45 | 3:48 | | Continuously build marines, research Stim Pack |
| 46 | 3:52 | | After finish continuously build SCVs and drop MULEs until natural is saturated then lift to your 3rd expansion location |
| 52 | 4:04 | | |
| 53 | 4:07 | | After it finishes, research Combat Shields |
| 57 | 4:27 | | Build 2 Reactors |
| 57 | 4:29 | | Build 6 Medivacs |
| 58 | 4:30 | | |
| 59 | 4:32 | | Swap and build another Reactor |
| 61 | 4:36 | | Saturate them right away |
| 62 | 4:45 | | Research +1 Weapons and +1 Armor |
| 65 | 4:58 | | |
| 62 | 5:09 | | Build 2 Reactors |
| 64 | 5:16 | | |
| 68 | 5:24 | | |
| 71 | 5:26 | | Build Widow Mines |
| 73 | 5:30 | | Build up to 6 Medivacs |
| 78 | 5:39 | | |
| 81 | 5:47 | | |
| 87 | 5:58 | | |
| 94 | 6:05 | | |
| 94 | 6:09 | | Enable +2 Weapons and +2 Armor |
| 104 | 6:22 | | |
| 112 | 6:33 | | Saturate it right away |
| 112 | 6:34 | | Build a Tech Lab and research Drilling Claws |
| 112 | 6:39 | | |
| 112 | 6:45 | | |
| 114 | 6:46 | | Stop Medivac production, replace them if any gets destroyed |
| 127 | 7:01 | | |
| 128 | 7:07 | | Build a Planetary Fortress |

Your first scout is the SCV that built your first Barracks.
Then scout with your Reaper.
Follow up by adding 4 Hellions to your scout party, try to deny creep and potentially undermine their economy by finding a breach in their defenses.
Build 6 Medivacs to support your armies.
At the 7:00 minute mark you should have two separate groups on the other side of the map clearing up creep. Backed up by 4 Medivacs.
Then join forces and attack the most vulnerable base your opponent has, it should be the one closer to the middle of the map. Your army should consist of Marines, Widow Mines, and 4 Medivacs.
Don't forget to leave 2 Medivacs at home with a few troops to defend against counterattacks, such as Zergling Run-Bys.