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SynTek Residential Speed Run is a Steam Achievement that requires you to complete the map SynTek Residential within 2:30 minutes on Normal or harder difficulty. This achievement is repeatable.

StrategyEdit

  • Set up your squad so you have 3 Flamers on hand, with each character bringing a Chainsaw and Electric Armor. At the start, split up so one marine wipes out the upper-left eggs and the nearby biomass, another wipes out the biomass and eggs in the middle, and the last one (preferably Wildcat or Faith for their Speed Bonus) rushes through the ducts on the right side. Activate Electric Charged Armor to destroy attached Parasites or prevent them from latching on to you. The fourth marine should set up at the elevator and press the button as soon as all the objectives are completed.
  • Set Biomass and Eggs on fire with the Flamer, but don't wait around for them to burn down, run to the next cluster. The only exception is biomass that blocks your way: keep up a steady spray of napalm so it goes down faster. Meleeing burning eggs destroys them faster as well.
  • Running through the flames and then extinguishing yourself is faster than extinguishing the fire itself.

Best time video strategyEdit

Time: 1:54 (0:36 under requirement)

SynTek Residential speed run (1 54) HD - Alien Swarm Source01:58

SynTek Residential speed run (1 54) HD - Alien Swarm Source

Loadout
Character Primary Secondary Offhand
Wildcat Flamer Marksman Rifle/Shotgun Smart bomb
Faith Flamer Grenade Launcher Smart bomb
Helper 1 Flamer Marksman Smart bomb recommended
Helper 2 Flamer Any Tesla Sentry Coil

General notesEdit

  • The whole team will split up throughout the level until the elevator is called.
  • It is undesirable to have eggs spawn at the top-right room of the central area, as it is not part of anybody's path in an optimal run.
  • Run through fire if it's in your way, and then tap the secondary fire with the Flamer equipped to extinguish yourself.
  • As soon as biomass begins to disintegrate, it is counted towards the objectives and you can traverse it.
  • While your team waits for the elevator, keep the monsters at bay so that you won't be hit as you rush inside the elevator.
  • If executed correctly, the eggs and biomass will be destroyed at about the same time, at which point Helper 2 will be at the elevator switch.
  • Wildcat or Faith should pick up the healing kit near the welded door between the elevator lobby and the north entrance of the vents.

Individual player strategiesEdit

Wildcat (bottom-right screen in video)
Enter the ventilation ducts via their south entrance, shoot the egg with your Rifle/Shotgun and then turn north. As you approach the biomass, activate your Smart Bomb to destroy the eggs in the southern half of the ducts. Sustain fire on the biomass until it is destroyed. In case Faith's Smart Bomb fails, continue north and turn west to destroy any remaining eggs. Meet up with your team at the elevator.
Faith (top-right)
Before entering the junction where you turn east, destroy all the Drones and Parasites in your path with grenades before they can obstruct your team. Run to the north entrance of the ventilation ducts, destroy the eggs there with grenades, and sustain fire on the biomass. Just after you enter the vents, activate your Smart Bomb and run east. If you're fortunate, then the missiles will destroy all of the eggs in the northern half of the ducts. If not, then destroy the remaining eggs on the eastern side. Meet up with your team at the elevator.
Helper 1 (top-left)
Ignite the biomass in the mall, backtrack to go upstairs, and run north while igniting any other eggs along the way. A Smart Bomb can be activated to kill the Boomer in your path. Once the northernmost eggs are in your range, shoot them through the locked door with your Marksman Rifle. With enough practice, you can shoot all three eggs without having them in your view. Meet up with your team at the elevator.
Helper 2 (bottom-left)
Go to the biomass in the central area and drop a Tesla Coil for cover. Sustain fire on the biomass until the posterior section has been directly exposed to your Flamer for approximately three seconds. Run to the elevator switch and hit it as soon as possible. Drop your remaining Tesla Coils near the elevator entrance, and survive as your team arrives.

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