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killing infected along the way. Simple, and relatively painless."
Left 4 Dead

killing infected along the way. Simple, and relatively painless."

Use gas canisters to create a safe zone and escape the helicopter in Left 4 Dead. Learn how to handle elite zombies and Tanks.

By ···10 min read·Multi-source verified
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Use gas canisters to create a safe zone and escape the helicopter in Left 4 Dead. Learn how to handle elite zombies and Tanks.

Walkthrough
  1. 1
    Find two gas canisters. They can be in the radio room or on the roof of the building across the pipe to the right when you go up the stairs.
  2. 2
    Set one gas canister at the bottom of the ramp and the other in the middle.
  3. 3
    Head to the radio and signal the helicopter.
  4. 4
    Run up the stairs and go up the ladder to the roof.
  5. 5
    From the corner of the roof, go forward and to the left towards a pole. Slowly walk off the left edge and land on top of the electrical box.
  6. 6
    On single player, your team will usually stay near the minigun; ignore them. With friends, have everyone go on the box.
  7. 7
    The horde cannot detect you on the box; zombies will completely ignore you. Only elite zombies (Special Infected) are a threat. Keep a look out below, behind, and on the roof for them.
  8. 8
    When you hear the Tank, remain calm. If it doesn't spawn to your right, it will ignore you and disappear. If it sees you, dispatch it and return to the box.
  9. 9
    Repeat this process until the second Tank is gone and the helicopter arrives.
  10. 10
    When the helicopter passes you, jump onto the roof and run for the helipad.
  11. 11
    As you go up the ramp, turn around and shoot both gas canisters.
  12. 12
    Throw a pipe bomb to distract the infected.
  13. 13
    Quickly get on the helicopter.
Tips
  • The horde cannot detect you on the electrical box, making it a safe zone from regular infected.
  • Focus on elite zombies (Special Infected) as they are the only ones that can reach you on the box.
  • The Tank will often ignore you if you are on the electrical box, but be prepared to fight it if it spots you.
  • Use the gas canisters as a distraction and a final defense before boarding the helicopter.

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