How to install zm_rs_biohazard_base_v4 in CS 1.6?

Download the zm_rs_biohazard_base_v4 map file (.bsp), place it in your Counter-Strike 1.6 "cstrike/maps" folder (usually at C:\Program Files\Steam\steamapps\common\Half-Life\cstrike\maps), and restart the game. The map will appear in the map selection menu or you can join a server running it.

How many servers are playing zm_rs_biohazard_base_v4 right now?

Currently 0 servers are playing zm_rs_biohazard_base_v4. The map has been played a total of 638 times across 1 servers.

Zombie zm_

zm_rs_biohazard_base_v4

Servers playing now

Total servers

Times played

638

Last played

Feb 5, 2026

Download from GameBanana Similar maps

Servers playing zm_rs_biohazard_base_v40

No server is playing zm_rs_biohazard_base_v4 right now. Browse the server list

How to install zm_rs_biohazard_base_v4

Download the zm_rs_biohazard_base_v4.bsp map file from GameBanana or another trusted source.
Locate your Counter-Strike 1.6 installation folder. The default path is: C:\Program Files\Steam\steamapps\common\Half-Life\cstrike\maps\
Copy the .bsp file into the maps folder. If the download includes .wad or .res files, place them in the cstrike folder.
Restart Counter-Strike 1.6. The map will appear in the map list, or you can connect to any server running it from the server list.

About zm_rs_biohazard_base_v4

zm_rs_biohazard_base_v4 is a Zombie map for Counter-Strike 1.6. It has been played 638 times across 1 servers. Last played on February 5, 2026.

Zombie Mod (zm_) maps are designed for the popular Zombie Plague modification. One team plays as zombies trying to infect humans, while humans must survive using weapons and barricades. These maps feature strategic defensive positions and escape routes.

zm_rs_biohazard_base_v4

Servers playing zm_rs_biohazard_base_v40

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