Left 4 Dead

Modding
Modding
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(L4D2 | Blue Limbo)
To escape from the zombie apocalypse on the surface, people ran into this abandoned huge sewer and built a small shantytown to keep survive in this world. But now they're all gone
(L4D2 | Blue Limbo)
To escape from the zombie apocalypse on the surface, people ran into this abandoned huge sewer and built a small shantytown to keep survive in this world. But now they're all gone
(L4D2 | Blue Limbo)
To escape from the zombie apocalypse on the surface, people ran into this abandoned huge sewer and built a small shantytown to keep survive in this world. But now they're all gone
(L4D2 | Blue Limbo)
To escape from the zombie apocalypse on the surface, people ran into this abandoned huge sewer and built a small shantytown to keep survive in this world. But now they're all gone

(L4D2 | Blue Limbo) To escape from the zombie apocalypse on the surface, people ran into this abandoned huge sewer and built a small shantytown to keep survive in this world. But now they're all gone

I am new to L4D2 mapping. How do I stop zombies from spawning in an area the player has already played through?

I am new to L4D2 mapping. How do I stop zombies from spawning in an area the player has already played through?

(Edited)