The de_sector.zip file you have requested: Maps Levels Missions / DE Maps / De_Sector CS Map - 3.92mb is not available. Perhaps try browsing all files for the game Counter-Strike and upload any files you want to share or are missing. This is the only information we could locate:
FULL USE of custom textures, which are imbedded in the .bsp so it's easy to put on your server! Connecting clients only have to download the .bsp directly to play! Map "de_sector.bsp" for Counter-Strike 1.6. Insanely detailed but with managable r_speeds make this map look closer to Unreal than Half-Life!