How do I install Counter-Strike Source maps?

• Navigate to your steam folder, usually located in: C:\Program Files (x86)\

• Continue to navigate to the maps directory, usually located in: C:\Program Files(x86)\steam  \steamapps\ACCOUNT NAME\counter-strike source\cstrike\maps  OR \orangebox\cstrike\maps depending on your version.

• Find the map (.bsp and.nav) you wish to downloadfrom the Index of Counter-Strike Source maps, download and unzip the file contents, then place the .bsp and .nav into /maps.

CS:S Maps: AIM_- FY_

CS:S Maps: GG_

CS:S Maps: Knas_ – ZM_

What is a .BZ2 file extension? Can I place the .BZ2 directly into my /maps folder?

A .BZ2 file is used by file servers to compress maps, navs, sounds, materials and other files to be used on fast download servers for auto downloads  for Counter-Strike Source servers.

You cannot place the .BZ2 directly into the /maps folder. Simply extract the .bz2 with any .zip, or .rar
file decompression software like WinRAR, WinZIP, JZip and place the file into your /maps directory.
Counter-Strike Source SERVER ADMINISTRATORS: BZIPis available for download at the bottom of this page.

I need a .NAV file, and I don’t see it in the Index. Where can I find the .nav file? What is a .nav file, anyway? What does the error mesage “Sampling walkable space” mean?

Sometimes, a .NAV is included with the .BSP. In this case there is no .NAV file. If the .NAV file is unavailable, don’t worry. The first time you run the map, Counter-Strike Source will generate a .nav file
and you will see a progress bar saying things like “sampling walkable space.” This has been known to
take a couple seconds, to a couple hours depending on the complexity of the map, so be patient! “Sampling walkable space” will eventually go away, the map will load and be playable, and the .nav will appear in your /maps dir. The .nav file is used by CS:S bots to be able to navigate the map. Bots will glitch out without a .nav file.

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